Sponge Trading

Turn real-world signals into trades.

Build a strategy that watches SEC filings or the accounts you follow on X. Claude Opus 4.8 reads each event in your strategy's context and decides to buy, sell, or do nothing, then executes on Hyperliquid, 24/7.

Trading involves risk of loss. Not financial or investment advice.

New strategyDraft
Source
@marketwatcher
Watch
Buyback announcements
Asset
AAPL
Cap
$5,000

How it works

From signal to trade, automatically

New strategyDraft
Source
@marketwatcher
Asset
AAPL
Cap
$5,000
01

Create a strategy

Pick a signal source (SEC filings or an X account you follow), choose one asset, and set a capital cap and drawdown stop. Start from an example or build your own.

Signal feedLive
SEC EDGAR · no new filing

@marketwatcher

buyback announcement

02

Sponge watches 24/7

Sponge monitors your source around the clock. When a relevant event arrives, like an insider Form 4, a fund's 13F, or a new post, it's passed to your strategy.

DecisionOpus 4.8
@marketwatcher · buyback
Buy AAPL · long · 1x
03

Claude Opus 4.8 decides

Opus 4.8 reads the event in your strategy's context and decides whether to buy, sell, or do nothing, and how much to trade within your cap.

OrderFilled
AAPLBuy · 1x
SettlementUSDC
Reconciledon-venue
04

Executes on Hyperliquid

Approved orders go to Hyperliquid, long or short at 1x, settled in USDC. Every fill is reconciled on-venue with duplicate-order protection.

Features

Everything a strategy needs to trade for you

Signal triggers

Watch what moves markets: insider Form 4 and institutional 13F filings from SEC EDGAR, or posts from the X accounts you follow.

AI-driven decisions

Claude Opus 4.8 reads each event in your strategy's context and decides to buy, sell, or stand pat, with a sizing call inside your limits. Not rigid if-this-then-that rules.

Real assets on Hyperliquid

Trade crypto like BTC and ETH, equities like NVDA, TSLA and AAPL, and commodities like oil, all via Hyperliquid HIP-3 builder markets and settled in USDC. Long or short, always 1x.

Your funds, your custody

Use a Sponge-managed Hyperliquid account, or link your own. Linked accounts start read-only; you grant trading access when you're ready.

Built-in risk controls

Every strategy is one asset, 1x only, with a capital cap you set plus drawdown stops and kill switches. No leverage, ever.

Transparent P&L

Track realized P&L net of fees and funding in a live terminal: real-time chart, order book, positions, and manual orders, with notifications. Fully mobile-responsive.

Examples

A few ways to start

Start from an example and make it yours, or build a strategy from scratch.

13F filing

Mirror a fund's 13F

Move with new positions as funds disclose them.

Form 4

Follow insider buys & sells

Trade alongside executives in their own stock.

13F filing

Follow Berkshire's moves

Track Berkshire's disclosed position changes.

X post

Copy a creator's stock picks

Mirror the tickers an account you follow posts.

X post

Inverse Jim Cramer

Fade every call from a pundit you pick.

X post

Trade on buyback announcements

Act when an account flags a buyback.

FAQ

Create your first strategy

Start from an example or build your own. Set your cap, pick a source, and let it run.

Trading involves substantial risk, including the possible loss of capital. Past activity does not guarantee future results. Sponge Trading is not financial, investment, tax, or legal advice and is not a recommendation to buy or sell any asset. Positions are unleveraged (1x). You are responsible for the strategies you run.