Composer vs Senpi: automated stock strategies that trade once a day, or an AI agent that trades around the clock
Composer and Senpi both turn an idea you describe into rules that trade automatically; they split on what they trade and when. Composer, now Composer by SoFi after SoFi bought Composer Securities in the second quarter of 2026, lets investors build rules-based strategies for US stocks, ETFs and options without code, with an AI assistant, backtest them on decades of daily prices and run them in a brokerage account, trading once a day in the last fifteen minutes before the close. Senpi is an AI trading agent for Hyperliquid perps: you describe a strategy in a sentence, approve the rules the agent writes, and the agent runs them 24/7 across crypto and the XYZ DEX stock, index, metal and FX perps, long or short, exiting through DSL.
The honest split: Senpi wins where you want trading around the clock, an agent you can instruct from Claude or ChatGPT, a ratcheting stop on every strategy built from a rule or a template and a read of what proven wallets are doing; Composer wins where you want real shares, ETFs and options in a regulated brokerage account, or shares and ETFs in an IRA, and to backtest every rule on decades of history before it trades. Composer ended crypto support on Jan 31, 2026. Facts below come from composer.trade, its help centre, changelog and fee schedule, SoFi’s June 23, 2026 announcement and filings, senpi.ai/pricing and senpi.ai/fees, as of Nov 10, 2026.
TL;DR
| Criterion | Composer | Senpi | Winner |
|---|---|---|---|
| Best for | Investors who want rules-based stock, ETF and options strategies, backtested on decades of data and rebalanced automatically in a brokerage account | Traders who want an AI agent to build, run and protect strategies around the clock on Hyperliquid perps, including stock, metal and index perps | - |
| Who places the trades | Fixed rules you approve, executed once a day; SoFi describes Composer as “unlike agentic trading tools that rely on AI to continuously make trading decisions” | You approve a strategy’s rules once, then your agent runs them 24/7 under a deterministic risk harness, and opens, adjusts or closes on your instruction | - |
| AI agent and connectors | Trade with AI builds and explains strategies from chat or clicks, and you confirm before anything trades; no live Claude or ChatGPT connector on Composer’s current pages | Your own Senpi agent inside Claude, ChatGPT, Grok, Grok Bot, Hermes and Muse through Senpi Connectors: research, build, run, review or close strategies without opening the app | Senpi |
| When it trades | Once per market day, between 3:45 and 4:00 PM ET, with rebalancing from daily to yearly or on drift thresholds; nothing trades at night or at weekends | Around the clock, weekends included: the runtime checks and acts on its rules 24/7, on crypto and stock perps alike | Senpi |
| Protection and exits | No stop-loss or take-profit on strategies; risk is written into the logic (drawdown or volatility conditions, inverse-volatility weights, threshold rebalancing), and Pro can skip trading and go to cash | DSL, a stop that ratchets up as a trade gains, on every strategy built from a rule or a template (copy strategies carry at most a flat stop); cooldowns and optional daily-loss and drawdown halts per strategy; alerts on any wallet you add | Senpi |
| Senpi Signals vs Composer’s Discover | Discover ranks community strategies by backtested performance and explains them; no read of what other traders are holding | Senpi Signals: per asset, the biggest recent moves from wallets with a proven record set against the crowd, scored, with the driver named; Quant Desk: a score over six explained dimensions, a protection audit of the live book and leaks priced in dollars, on any Hyperliquid address | Senpi |
| Senpi Companion on the sites you read | None; Composer runs in its web app and an iPhone app | A Chrome extension on 28 sites (X, Hyperliquid, TradingView, Binance, Coinbase, OKX and more): Quant Desk on any wallet you see, the Signals brief, and Trade the Take, which turns a post into a trade setup | Senpi |
| Building a strategy without code | A visual editor of if/else conditions, filters, weights and indicators such as RSI, moving averages and max drawdown, plus Trade with AI to draft one | Describe it in plain English: the agent asks one decision at a time, writes the rules and reads them back before anything trades; a growing library of strategy templates | Tie |
| Following other traders | Invest in, watch or copy any of 2,000+ community strategies, with every rule visible | Mirror a trader you choose, after the agent researches their record on whole-book profit, margin, drawdown, timing and fee load, sized 0.1x to 4x | Tie |
| Developer surface | A Pro-plan API to create, backtest and deploy strategies and to trade stocks, ETFs and options directly | Senpi Connectors over MCP and the open-source Senpi Skills on GitHub for agents and scripts | Tie |
| Accounts and protection of funds | A brokerage account at Composer Securities, an SEC-registered broker-dealer and FINRA and SIPC member, carried by Alpaca or Apex; SIPC up to $500,000 plus excess cover; taxable, Traditional IRA and Roth IRA accounts | Non-custodial embedded wallets with exportable keys; each strategy trades from its own funded strategy wallet, the agent holds no keys, and withdrawals are made by you in the app, behind MFA | Composer |
| Backtesting and paper trading | Unlimited backtests on every plan, on daily prices going back about 30 years, with regulatory fees and slippage modelled; “Watch” a strategy with a simulated $1,000 before you invest | No backtest or paper mode yet; the agent reads the rules back to you, and you test with a validation run and a small live budget | Composer |
| What it costs | Starter $0 with one automated strategy, Advanced $10 a month with five, Pro $40 a month ($32 billed annually) with up to 500; no commissions on stocks and ETFs; options $0.65 a contract | Pro $50, Advanced $100, Quant $200 a month with AI credits, after a 14-day free trial; 0% Senpi trading fee on every paid plan, 0.03% on the free trial or without a paid plan; Hyperliquid’s own fees apply on top: 0.015% maker and 0.045% taker at the base tier on crypto perps, less at higher volume, and about 0.009% taker on most XYZ markets (GOLD, MSTR and three others cost 0.09%) (senpi.ai/fees) | - |
Winner column: Senpi, Tie, or - for rows that describe what each product is rather than which is better.
At a glance
Composer at a glance
An automated investing app, now Composer by SoFi: SoFi acquired Composer Securities LLC in the second quarter of 2026 and announced it on June 23. Build strategies (“symphonies”) for US stocks, ETFs, including leveraged and inverse ETFs, and options in a no-code editor or with Trade with AI, backtest them on daily prices going back about 30 years, then invest and let them rebalance automatically once a day near the close. 2,000+ community strategies to copy, more than 175,000 investors. Brokerage through Composer Securities with Alpaca or Apex, SIPC cover, taxable and IRA accounts, $50 minimum, for US residents. Crypto ended on Jan 31, 2026. Starter $0, Advanced $10 and Pro $40 a month, no commissions on stocks and ETFs.
Senpi at a glance
An AI trading agent for Hyperliquid perps. Describe a strategy in plain language and the agent researches the market, writes the rules, shows them to you and runs them 24/7 on a hosted runtime under a deterministic risk harness; or mirror a trader you choose, after it researches their record. Quant Desk scores any Hyperliquid address on six dimensions; Senpi Signals track proven wallets against the crowd. Every strategy built from a rule or a template exits through DSL, a stop that ratchets up as the trade gains, and can carry daily-loss and drawdown halts. Trades crypto perps plus the XYZ DEX stocks, pre-IPO names, metals, indices and FX. Runs on web, iOS, Android, a Chrome extension on 28 sites, and inside Claude, ChatGPT, Grok, Grok Bot, Hermes and Muse. Plans Pro $50, Advanced $100, Quant $200 a month, 0% Senpi trading fee on paid plans. Fund with a card, Apple Pay or Google Pay through the on-ramp, or with USDC on seven chains. Non-custodial wallets with exportable keys.
Quick verdict
| If you want | Choose |
|---|---|
| Strategies that act at night and at weekends, not once a day | Senpi |
| Stock, gold or index exposure 24/7, long or short | Senpi |
| An agent you can instruct from Claude, ChatGPT or Grok | Senpi |
| DSL on every strategy built from a rule or a template and optional halts per strategy | Senpi |
| Real shares, ETFs and options in a brokerage account; shares and ETFs in an IRA | Composer |
| To backtest every rule on decades of daily data first | Composer |
What Composer is built for
Real shares, ETFs and options, and IRAs for shares and ETFs
A regulated brokerage account at Composer Securities, carried by Alpaca or Apex, with SIPC and excess cover, taxable, Traditional IRA and Roth IRA accounts, and options trading.
Backtest on decades of history
Unlimited backtests on every plan, on daily prices going back about 30 years with fees and slippage modelled, and a $1,000 simulation before you invest.
Cheap to start, with a big library
One automated strategy free, no commissions on stocks and ETFs, a $50 minimum and 2,000+ community strategies to copy.
Rules that trade once a day, or an agent that runs 24/7
Both execute the strategy for you. How often, and who you talk to, decides which fits.
| Criterion | Composer | Senpi |
|---|---|---|
| What the AI does | Finds and explains community strategies and drafts a symphony from your request; you confirm it, and then the rules run | Interviews you one decision at a time, writes the strategy, reads it back, then operates it and reports what it did |
| When orders go out | In one daily window, 3:45 to 4:00 PM ET (12:45 to 1:00 PM on early-close days), as not-held orders batched sells first | Whenever the strategy’s rules fire, around the clock, from the hosted runtime |
| Changing a live strategy | Edit the symphony in the editor or with Trade with AI; trades still go out in the daily window | Tell the agent in the app, Claude or ChatGPT; edits apply live |
| Where you use it | Web app and iPhone app | Web, iOS and Android apps, the Chrome Companion and Senpi Connectors |
Senpi's edge here
Composer’s once-a-day design suits long-horizon rebalancing and keeps every trade traceable to a rule. Senpi is for strategies that have to act when the market moves, at 3 AM or on a Sunday, and for traders who want to instruct the agent from wherever they are.
What you can trade
Composer trades shares; Senpi trades perpetual futures that track prices.
| Criterion | Composer | Senpi |
|---|---|---|
| Stocks and ETFs | US stocks and ETFs, including leveraged and inverse ETFs, bought as shares (fractions down to 1/100,000) | Stock and ETF perps on the XYZ DEX, such as Nvidia, Tesla and the S&P 500, trading 24/7: price exposure, not shares |
| Other assets | Options (covered calls, cash-secured puts and more); no crypto since Jan 31, 2026 | About 180 crypto perps, plus gold, silver, oil, indices, FX and pre-IPO names such as Anthropic |
| Direction and leverage | Long positions, with inverse and leveraged ETFs for bearish or amplified exposure | Long or short on any market, with leverage set by Hyperliquid per market: up to 20x on the largest stocks such as Nvidia and Tesla, 10x on most others |
| Hours | US market hours; strategies trade in the closing window | 24/7; at weekends stock perps are priced from Hyperliquid’s own order book within set bounds |
Evenly matched
Composer gives you the asset itself in a brokerage account, with options on top. Senpi gives you round-the-clock price exposure, long or short, across stocks, commodities and crypto in one account, without owning the share. Which one is right depends on whether you want to own or to trade.
Testing first, and protection once live
What happens before money moves, and while it is at risk.
| Criterion | Composer | Senpi |
|---|---|---|
| Before going live | Backtest on daily adjusted closes going back about 30 years with fees and slippage; watch a $1,000 simulation | Review the rules the agent reads back, then a validation run and a small live budget; no backtest or paper mode yet |
| Exits | Whatever the logic says at the next daily window; no stop or take-profit orders on strategies | DSL on every strategy built from a rule or a template, a stop that ratchets up and never loosens |
| Limits | Risk-off branches, drawdown and volatility conditions; Pro can skip trading or go to cash | Cooldowns and optional daily-loss and drawdown halts per strategy |
Evenly matched
Composer is stronger before you go live: every rule backtested on decades of history. Senpi is stronger once you are live: a stop that moves with the trade at any hour, where a Composer strategy waits for the next closing window. Neither can promise a fill at a stop’s trigger price.
Accounts and cost
Where your money sits and what a month costs.
| Criterion | Composer | Senpi |
|---|---|---|
| Account | A brokerage account at Composer Securities (Alpaca or Apex), SIPC cover, taxable or IRA, $50 minimum | Non-custodial wallets with exportable keys; a separate strategy wallet for each strategy |
| Funding | Bank transfer; IRA and 401(k) rollovers | Card, Apple Pay or Google Pay through the on-ramp, or USDC on seven chains |
| Price model | Starter $0, Advanced $10, Pro $40 a month; no commissions on stocks and ETFs | Pro $50, Advanced $100, Quant $200 a month; 0% Senpi trading fee, Hyperliquid’s fees on each trade |
Winner: Composer
Composer is cheaper to start, with one automated strategy free, and it is a regulated brokerage with IRA accounts and SIPC cover. Senpi’s plans cost more and include AI credits and a hosted agent that runs 24/7; your funds stay in wallets you control.
Where Senpi is stronger
Trades around the clock
The runtime acts on its rules 24/7, at night and at weekends, where a Composer strategy trades only in a fifteen-minute window before the US close.
Stocks, gold and crypto, long or short, in one account
Stock, index, metal, FX and pre-IPO perps on the XYZ DEX and about 180 crypto perps, all 24/7, all from one agent.
An agent with protection, wherever you are
DSL on every strategy built from a rule or a template, optional daily-loss and drawdown halts per strategy, Senpi Signals on proven wallets, and the same agent inside Claude, ChatGPT, Grok, Grok Bot, Hermes and Muse.
Which should you choose?
Choose Composer if
- You want to own shares, ETFs or options, or shares and ETFs in an IRA
- You rebalance on a long horizon and a once-a-day trade is enough
- You want every rule backtested on decades of daily data before it trades
Choose Senpi if
- You want strategies that act at any hour, weekends included
- You want stock, commodity and crypto exposure, long or short, from one agent
- You want DSL on every strategy built from a rule or a template and an agent you can instruct from Claude, ChatGPT or Grok
Conclusion
Senpi is the operator for markets that never close. Its agent writes a strategy from a sentence and runs it 24/7, so a stop moves or an entry fires when the market does, not at the next 3:45 PM window, and every strategy built from a rule or a template exits through DSL with optional halts per strategy.
Senpi also covers more ground in one account: Nvidia, Tesla and the S&P 500 as 24/7 perps, gold, oil and FX, pre-IPO names and about 180 crypto markets, long or short, and you can instruct the same agent inside Claude, ChatGPT, Grok, Grok Bot, Hermes and Muse or on the Companion while you read X.
Senpi Signals and Quant Desk add a read Composer’s Discover tab does not have: what wallets with a proven record are doing against the crowd, and a score on any address.
Composer is the better choice for investors who want to own the asset: shares, ETFs and options in a regulated brokerage account, or shares and ETFs in an IRA, backtested on decades of history and rebalanced once a day, starting free.
Frequently asked questions
Composer or Senpi for AI trading?
Pick Senpi if you want an AI agent that runs strategies 24/7 on Hyperliquid perps, including stock, metal and crypto perps, long or short, with DSL on every strategy built from a rule or a template. Pick Composer if you want rules-based strategies for real stocks, ETFs and options in a brokerage account, backtested on decades of data and traded once a day.
What is Composer?
Composer (composer.trade), now Composer by SoFi, is an automated investing app. You build a strategy for US stocks, ETFs or options in a no-code editor or with its AI, backtest it, then invest and it rebalances automatically. It has more than 175,000 investors and 2,000+ community strategies.
Did SoFi buy Composer?
Yes. SoFi acquired Composer Securities LLC in the second quarter of 2026 and announced Composer by SoFi on June 23, 2026. Composer said accounts, pricing and fees stayed the same at the switch; SoFi plans to bring it into SoFi Plus.
How does Composer’s AI work?
Trade with AI, launched in late 2025, finds and explains community strategies and drafts a symphony from a chat or a few clicks. You review and confirm it, and then the strategy’s fixed rules trade automatically. SoFi describes Composer as unlike agentic tools that rely on AI to keep making trading decisions.
When does Composer place trades?
Once per market day, between 3:45 and 4:00 PM ET (12:45 to 1:00 PM on early-close days). Strategies rebalance on a schedule from daily to yearly, or when weights drift past a threshold.
Does Composer trade crypto?
No. Composer ended crypto support on Jan 31, 2026 and now covers US stocks, ETFs and options. Senpi trades about 180 crypto perps on Hyperliquid, as well as stock, metal, index and FX perps.
How much does Composer cost?
Starter is free with one automated strategy, Advanced $10 a month with up to five, and Pro $40 a month, or $32 billed annually, with up to 500 and API access. Stock and ETF trades carry no commission; options cost $0.65 a contract.
Is Composer legit?
Composer Securities LLC is an SEC-registered broker-dealer and a member of FINRA and SIPC, owned by SoFi; accounts are carried by Alpaca or Apex with SIPC cover up to $500,000. As with any strategy tool, a backtested strategy can still lose money.
Can I trade stocks 24/7 with Senpi?
Yes, as perpetual futures on Hyperliquid’s XYZ DEX: Nvidia, Tesla, the S&P 500 and other stocks and indices trade around the clock, long or short. You get price exposure, not shares, and at weekends the price comes from Hyperliquid’s own order book within set bounds.
Does Senpi have backtesting or paper trading?
Not yet. The agent reads the rules back before anything trades, and a strategy is tested with a validation run and a small live budget. If backtesting on long history matters most, Composer does it today.
Can I run Senpi from Claude or ChatGPT?
Yes. Senpi Connectors put your Senpi agent inside Claude, ChatGPT, Grok, Grok Bot, Hermes and Muse: you ask it to research a market, build or edit a strategy, review a wallet or close a position, and it does it on Hyperliquid without you opening the app.
What is DSL?
Senpi’s dynamic stop loss: a stop attached to each position in a strategy Senpi runs, which ratchets up as the trade gains and never loosens, so a winner gives back only part of its gain before it closes. No stop can guarantee a fill at its trigger price.
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