COLD-VALIDATED ACROSS 4 MARKET REGIMES
Coil is a rules-based engine you run on your own machine. Drop the packet into your AI agent, connect your brokerage, and it takes the entries, manages every exit by rule, and applies its risk circuit-breakers automatically — while you live your life. You stay in control; pull the plug in one command.
Leveraged ETFs can move fast and lose money, including total loss.
You set it up once, read the rules for yourself, and arm it. After that it runs hands-off on your own account.
Drop the packet into your agent. It becomes the operator that wakes on a schedule, reads the rules, and works the market for you — placing trades and managing exits — so you don't have to sit and watch. It executes the rules; it can't rewrite them.
Link your account through a broker connector and add a free data key. Your credentials stay on your machine — nothing phones home, and you can revoke access any time.
Once armed, it takes entries, manages exits by rule, and enforces hard safety limits that cut size or stand down when losses pile up. Each night and week it re-fits the settings that already exist to your own fills — within strict, reversible limits, rolling back any change that doesn't help. It tunes the strategy to your tape; it doesn't rewrite the strategy.
Setup runs about an hour: drop in the packet, add your keys, run the 20 integrity guards, arm it. After that it's hands-off — you read every rule, and one command shuts it all down.
The framework refined over years of live trading, encoded so it runs the same whether you're watching or not. Tap "under the hood" on any card for the exact rules.
Coil waits for the one setup that has historically paid — a washed-out pullback inside a live uptrend — and sits out everything else. Roughly 115 trades a year; it ignores the rest.
The moment a move statistically ends, Coil is out — no targets to dream past, no "just one more day." And it never holds an inverse ETF overnight.
Hard safety limits cut your size or stand the engine down as losses pile up — written to disk so they survive restarts. They reduce big single-day damage; they don't remove risk.
Coil trades only SOXL/SOXS on the semiconductor complex — not because it can't do more, but because focus is what makes the self-tuning loops actually learn.
Semiconductors lead the market — they move first and hardest. When the tape turns, the signal shows up here first, so a tuned strategy reads it early.
SOXL/SOXS are among the most heavily traded 3× ETFs, with tight spreads — low friction in and out. Coil's edge was measured on this exact pair.
One instrument lets the self-tuning loops gather enough same-tape data to actually learn, instead of spreading thin across dozens of tickers.
Leverage cuts both ways: 3× ETFs decay over time and can lose money fast, including large or total loss.
The hardest part of trading semiconductors isn't the math — it's doing it the same way every time, without fear or FOMO. Coil follows its written rules whether you're at your desk, asleep, or out living your life. Same rules, no flinching — that consistency is the point, not a shield against losses.
Four very different backtested markets, green and red. Coil does one of two things: trade when it sees an edge, or step aside to cash when it doesn't. When it steps aside, idle cash sits in your broker's sweep instead of forcing a losing trade.
When Coil finds no edge, it holds cash instead of forcing a trade. On Robinhood Gold, that uninvested cash earns the broker's cash sweep — ~3.35% APY (variable, on Robinhood Gold) as of Feb 2026. That yield is the broker's, not Coil's.
*~3.35% APY is variable, set by Robinhood, and requires Robinhood Gold (a paid tier) — the broker's yield on idle cash, not Coil's, not risk-free.
Figures are backtested / forward-tested across the noted periods, net of modeled execution costs. They are not a record of client returns and not a promise of future performance. Trading leveraged ETFs can lose money rapidly, including total loss.
Every copy — including the $5 — tunes itself to your own trades forever: the nightly and weekly loops adjust the settings that already exist, within hard limits, and roll back any change that hurts. But it can only play the hand it was dealt. It can't add anything new — no new entry lanes, no new exits, no new instruments — and it can't repair a structurally weak market like the disclosed −8.3% chop cell (backtested). That fix is new structure, not a better setting — and that's what Pro builds.
The local loop optimizes what you already own; Pro expands what there is to optimize.
Tunes the dials it already has
Builds new dials to begin with
Coil Sync — a living feed, not a file.
No more re-downloading. Your AI agent contacts the Coil Sync service on its own schedule, checks your license, and pulls and applies the latest cold-validated version. Pro delivers new validated structure — the agent still runs with your approval and your own credentials.
$5 once. It tunes to your tape — yours to keep.
One-time. Yours to keep and run forever. Not crippleware.
Everything in Download — plus a living feed of new validated versions.
Manage or cancel anytime in your portal. Markets regime-shift and any frozen strategy decays — Pro is your access to new validated structure and your hedge against that decay. It reduces decay risk; it can't guarantee the edge survives.
Coil is software you operate yourself. It is not a managed account, not a signal service, and not investment advice.
Coil is built to be discovered, bought, installed, and run by an AI agent. It's ready for emerging agent-payment rails — agent checkout (ACP; our checkout is Stripe-backed) and card authority like the Robinhood card — with you in control. These rails are still emerging.
Non-technical? You've already got the full picture above. Curious how it works? Read on for the leg-rider entry logic, the exit math, the self-improvement loops, and the validation harness.
A sustained 2%+ move on the semis complex isn't a trend you chase — it's born as a short-timeframe reversal inside the one-hour trend. Coil waits for that compression, rides the ignition, and gets out the instant the move statistically ends. No hope, no targets, no averaging down.
Five signals — 1-hour trend, an RSI wash against it, a fresh 9-SMA recapture, tape energy, and the risk gate — fire through the engine every few minutes and resolve to one verdict: enter, exit, or stand down. The same wiring every time, with no mood and no FOMO.
Four closed feedback loops keep re-fitting the existing strategy to real evidence — bounded, gated, and reversible. (New structure still comes from the lab — that's Pro.)
The backtest harness was wrong three ways before it was right: a look-ahead bias bar, next-day data leakage, and a sign-inverted short book that made a bear market look profitable. Coil's own integrity tests caught all three. Twenty regression guards now stand watch over every one.
That's the whole pitch. A system that audits itself harder than you would is the only kind worth running unattended.
Two different loops. Your $5 copy self-tunes forever — it fits the existing strategy to your tape within hard limits. But it can only tune settings that exist; it can't add new entry lanes or exits, or fix a structurally weak regime like the −8.3% chop cell. Pro is the lab that discovers genuinely new structure — new lanes, exits, instrument sleeves, and that chop fix — each cold-validated across 4 regimes before it ships. And because markets regime-shift, a frozen strategy decays; Pro reduces that decay risk but doesn't guarantee the edge survives. Your download gets smarter about your tape; Pro makes the strategy itself smarter.
It's built for Claude — scheduled Claude sessions are the operator — and adaptable to your agent of choice. It places trades through a broker connector, built for Robinhood, and works with any broker that has an equivalent MCP. Under the hood it's Python on macOS with a free Alpaca data key. You add your own broker account id and key, and your credentials never leave your machine.
Once armed, it runs hands-off: it takes the entries, manages every exit by rule, and applies risk circuit-breakers tied to your account's high-water mark — no screen-watching required. You're never locked out: read every rule, see exactly what it did on the local dashboard, and stop it in one command. The circuit-breakers fire by rule, without emotion — they reduce big single-day damage, they don't remove risk. Leveraged ETFs like SOXL/SOXS can move fast and lose value rapidly, including total loss.
Because focus is the edge. Semiconductors lead the market — they move first and hardest — and SOXL/SOXS are among the deepest, tightest-spread 3× ETFs, the exact pair Coil's compression-to-ignition edge was measured on. Trading one tape lets the self-tuning loops gather enough data to actually learn, instead of diluting across dozens of tickers. The honest trade-off: leverage cuts both ways, and 3× ETFs decay and can lose fast, including total loss.
When Coil reads no edge it doesn't force trades — it stands down and holds cash. In the 2023 quiet-bull backtest it made 0 trades, preserving capital, which makes that the lowest-risk regime (not the highest return). While it sits out, your uninvested cash earns Robinhood's cash sweep, ~3.35% APY (variable, on Robinhood Gold) as of Feb 2026 — the broker's yield, not Coil's, and not guaranteed or risk-free. Choppy 2024 backtested at −8.3% (PF 0.90); we show that cell on purpose. It's a real loss, not fixed. A chop stand-down detector is Pro's first R&D target, in cold-validation now — not yet shipped.
Through Coil Sync. Your AI agent contacts the service on its own schedule, checks your license, and pulls and applies the latest cold-validated version — no manual re-downloads. Updates are new validated strategy versions and structure, not the agent learning to trade better on its own; it applies what's delivered and still runs with your approval and your own credentials. You can pin a version or cancel anytime and keep your last installed build.
That's what Coil is built for. An agent can discover it, buy it through emerging agent checkout (ACP; our checkout is Stripe-backed), install it, and operate it — with card authority like the Robinhood card. These rails are still emerging. It runs on your approval and your own credentials, and you stay in control. To be clear: this is software you run yourself. It's not investment advice and makes no income promise.
About one to two hours. You drop the packet into your agent, add your own broker account id and a free data key, run the 20 integrity guards, and arm it. The included blueprint walks every step in plain English.
The full Python engine: leg-rider entries, rule-based exits, persistent risk circuit-breakers, both local self-tuning loops, the cold-backtest harness with 20 integrity guards, a static dashboard, and the install blueprint. Plus the research notes — every validated edge and every refuted idea with the numbers that killed it. No credentials are included — you add your own.
No. Coil is software you run yourself, with your own credentials and your own capital. It is not investment advice, not a managed fund, and not a guarantee of profit. Trading leveraged ETFs carries substantial risk of loss, including total loss. Every performance figure here is backtested or forward-tested — not a record of anyone's client returns.
A complete, self-tuning system on your machine in about an hour — your account, your credentials, your control.