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Turn your trading instinct into a tested strategy.

No code. You look at real charts and mark what you would do. We find the pattern behind your picks, backtest it, and scan the market for stocks setting up the same way.

How it works

1

Label real charts

See real price charts with the future hidden. Mark Buy, Sell, or No trade — just like you would when trading.

2

We learn your rule

The app finds the pattern behind your Buys versus your No-trades and turns it into a concrete rule.

3

Backtest & save

See how the rule would have performed across history, then save the ones you like to your account.

4

Scan the market

Open a saved strategy and scan US or Nifty stocks for fresh setups with entry, stop and target.

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Educational tool · not financial advice.

Strategy builder
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1Label charts› 2Find rule› 3Save› 4Scan the market

Label charts the way you'd trade them

Each chart hides the future at the blue "decide here" line. Mark Buy, Sell, or No trade. Your Buys teach the setup; your No-trades are the counter-examples. Then hit "Find my rule".

Popular US tickers: AAPL, MSFT, TSLA, SPY, QQQ

draw:
up day down day EMA 20 (trend line) RSI 14 (lower panel) decide here
timeframe zoom
press Start to load a chart

Keyboard: B buy · S sell · N no trade · ← undo

Terms of Service  ·  Privacy Policy  ·  Risk & Disclosures  ·  Educational tool, not investment advice. Paper trading only.

Risk and disclosures

What Tradable is

Tradable is educational software. It lets you mark up historical charts, finds the rule that best matches your own decisions, and tests that rule against past data. It also explains how option premiums decay over time. That is the whole of it.

What Tradable is not

  • It is not investment advice. Nothing here is a recommendation to buy or sell anything. Any rule you see is one derived from marks you made, not a view we hold.
  • We are not registered with SEBI as a Research Analyst or Investment Adviser, nor with any equivalent regulator elsewhere. We do not provide research or advisory services.
  • No orders are ever placed. Every trade in this product is paper only. Tradable has no connection to your broker and cannot buy or sell on your behalf.

About the numbers you see

  • Backtests are hypothetical. They are simulations over past data, with no slippage, liquidity or emotion. Real results differ, usually for the worse.
  • Past performance says nothing about the future. A rule that worked on history is a rule that fit history.
  • Market data may be delayed or wrong. Prices come from third-party sources on a best-effort basis, and option chains are snapshots whose age is shown on screen. Do not rely on any figure here for a real trading decision.

Risk warning

Trading, and derivatives in particular, carries substantial risk. Options can expire worthless, and selling options can lose considerably more than the premium received. Most retail derivative traders lose money. Only risk what you can afford to lose, and consider speaking to a registered adviser before trading with real money.

Terms of Service

Last updated: June 2026

Strategy builder is an educational tool. By using it you agree to the following.

  • No financial advice. Nothing on this platform is investment advice, a recommendation to buy or sell any security, or a guarantee of any outcome. Backtests describe the past and do not predict the future.
  • Your responsibility. You are solely responsible for any trading decisions you make. Do not trade real money based solely on results from this tool.
  • Your content. The strategies you build and save belong to you. We do not claim any rights over them.
  • Acceptable use. You may not attempt to reverse-engineer, abuse, or overload the service, or use it for any unlawful purpose.
  • No uptime guarantee. This is a prototype. We may change, pause, or shut down the service at any time without notice.
  • Market data. Price data is sourced from Yahoo Finance's public endpoint. We make no warranty about its accuracy or availability.
  • Changes. We may update these terms at any time. Continued use after an update means you accept the revised terms.

Questions? Email pulkitjaitly123@gmail.com

Privacy Policy

Last updated: June 2026

We take privacy seriously and collect only what is needed to run the service.

  • What we collect. Your email address (used for account login) and the trading strategies you choose to save. We also record the date and time you last used the app, so we can see how many people are actively using it. We do not collect payment details, browsing history, or trading account information.
  • How it is stored. Accounts and authentication are handled by Supabase (supabase.com). Saved strategies are stored in a Postgres database with row-level security: only you can read your own strategies.
  • What we do not do. We do not sell, rent, or share your data with third parties for marketing. We do not run ads.
  • Data retention. Your data is kept as long as your account is active. You can delete any saved strategy at any time from the app. To delete your account entirely, email us.
  • Cookies. We use a session token (stored in your browser) to keep you logged in. No tracking or advertising cookies.
  • Your rights. You can request a copy of your data or ask us to delete it at any time by emailing us.

Contact: pulkitjaitly123@gmail.com

How Strategy builder works

You teach the app to trade the way you do — by example, not by writing code.

1

Label charts

Real charts load with the future hidden at the blue "decide here" line. Mark Buy, Sell, or No trade.

2

We learn your rule

The app finds what your Buys had in common versus your No-trades and writes a concrete rule.

3

Backtest & save

See how it would have done across history, then save the rules you like.

4

Scan the market

Open a saved strategy to find stocks setting up right now, with entry, stop and target.

Reading a chart: green = up day, red = down day, the amber line is the 20-day trend (EMA 20), the grey line at the bottom is momentum (RSI 14), and the blue dashed line is where you decide. Charts scroll left to right.

Buy teaches a long setup, Sell teaches a short setup, and No trade tells the app what to avoid. You need at least 2 Buys (and 2 No-trades) for a rule.

Everything here is educational and based on delayed data. Nothing is financial advice.

What the drawing tools mean

Drawings are optional. Click a tool to turn it on, click two points on the chart, then click the tool again (or Erase) to stop. They help the app read your setup more precisely, they do not change what Buy, Sell, and No trade mean.

S/R line

A support or resistance level. Draw a line along a price the chart has respected before. Below the current price it is read as support (a floor), above it as resistance (a ceiling). Helps the app learn setups like "buy near support."

Order block

A zone, not a line: the candle or small range right before a strong move, often where big buyers or sellers were active. Draw a box around it to mark "price tends to react here."

Stop box

Where you would exit if the trade goes wrong, your maximum acceptable loss. Draw a box at that price level on a chart where you marked Buy or Sell, so the app can learn your typical stop distance.

Target box

Where you would take profit if the trade goes right. Draw a box at that price level, on the same chart as your stop box, so the app can learn your typical reward relative to your risk.

Tip: draw a stop box and a target box on at least 2 charts you labeled, and your saved strategy will use your own exit levels instead of the default one.

Advanced: technical indicators

Turn on up to 10 indicators to help you read the chart while you label. These are visual only — they do not change what Buy, Sell, or No trade teaches the app.

Overlays · drawn on the price chart

Panels · added below RSI

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What these signals mean

Every signal we checked your decisions against, and what a higher or lower reading means.

RSI

Momentum, 0 to 100. Low (under 30) is often called oversold, high (over 70) overbought.

Distance to the 20-EMA

How far price sits from its 20-day trend average. Near 0% means price is hugging the trend.

Volume vs its 20-day average

1.0x is a normal day. Above 1.0x means more shares traded than usual, a sign of interest.

Volatility (ATR)

Average true range: typical size of a day's price swing. Higher means choppier price action.

Distance above support

How far price is above a recent floor level. Small values mean price is sitting right on support.

Distance below resistance

How far price is below a recent ceiling level. Small values mean price is right under resistance.

Distance to VWAP

Distance from the volume-weighted average price, a level heavier trading tends to cluster around.

Distance to the volume point of control

Distance from the price level where the most volume has traded recently, often a magnet for price.

Breakout above the 20-day high

How far price has pushed above its highest close in 20 days, a simple breakout measure.

Candle body size

How big the day's open-to-close move was relative to its full range. Large bodies show conviction.

Lower / upper wick

Long lower wicks (hammer-like) show buyers rejected lower prices; long upper wicks show sellers rejected higher ones.

Bullish engulfing candle

A reversal pattern where one candle's body fully swallows the prior candle's body.

The bar next to each signal shows how strongly it separated your picks from your no-trades; the label in parentheses shows which direction (higher or lower) lined up with your decisions.

The default stop and target

When you haven't drawn your own stop and target boxes, every rule uses the same starting exit plan:

Stop: 1.5x ATR

The stop sits 1.5 times the average daily price swing (ATR) away from your entry. Wider swings get a wider stop, so it adapts to how choppy the stock is.

Target: 2R

The target is set so a win is twice the size of what you're risking. If your stop is $2 away, the target is $4 away, a 2:1 reward-to-risk ratio.

Draw a stop box and a target box on at least 2 charts you labeled Buy or Sell, and your saved strategy will use your own exit levels instead of this default.

Charts are clickable

Click any stock's card or row to open its price chart. From there you can:

  • Switch between timeframes (1M to 5Y)
  • Zoom in for detail or out to see more history
  • See the price axis (left) and the date axis (bottom)

Reading option writing

Open interest is the number of option contracts still outstanding. Every contract has a buyer and a seller, so open interest alone cannot say which side started it. What it does show is where money is already committed, and comparing two snapshots shows who moved.

The two walls

  • Resistance is the strike carrying the most open calls. Whoever sold those calls is paid to be right that price stays below it, and they have a real incentive to defend that level.
  • Support is the mirror: the strike with the most open puts, where sellers are betting price holds above.

Between them is the range the market has, in effect, priced as most likely. It is a map of where other people’s money sits, not a forecast, and a strong enough move goes straight through both.

What the change column means

  • Writing. Open interest rose while the premium fell, so new sellers came in. This is what “call writing” and “put writing” refer to.
  • Buying. Open interest rose and the premium rose with it, so buyers were the ones pushing.
  • Covering. Open interest fell while the premium rose, meaning writers bought contracts back, often in a hurry.
  • Unwinding. Open interest and premium both fell, so positions were simply closed.

Put/call ratio and max pain

The put/call ratio compares total open puts against calls. Above 1 leans supportive, below about 0.7 suggests heavy overhead. It measures crowding, and crowds are sometimes wrong together.

Max pain is the expiry price at which option buyers collectively lose the most, and so writers keep the most premium. Price often drifts near it into expiry, but the effect is weak and widely overstated. Treat it as a curiosity, not a target.

None of this is a recommendation. It describes positions other people have already taken.

The shape before your decision

A candle on its own says very little. What usually drives a trader\u2019s instinct is the run-up: the 30 candles before the moment of choosing. These are the shapes we look for, measured only from bars that had already formed, so nothing here peeks at the future.

  • Double bottom. Price falls to a level, bounces, falls back to roughly the same level, and holds. Two lows within 1.5% of each other with a rally of at least 2% between them. Often read as sellers failing twice at the same price.
  • Double top. The mirror image: two highs at a similar level with a dip between, usually read as buyers failing twice.
  • Uptrend, downtrend, sideways. The slope of a straight line through the closes of the window. Above roughly 3% across the window counts as a trend, otherwise sideways.
  • Range width. How far the window travelled high to low, as a percentage of price. Small means coiled and quiet, large means it has been swinging about.

These are also fed to the rule finder as inputs, so if a shape really does drive your picks it can appear in the rule itself, not just in this summary.

How it matches your decisions

Three checks on how well the rule reflects what you actually clicked, for the Buy rule and the Sell rule alike.

Captured

How many of the charts you labeled this rule also flags. Shown as a fraction, e.g. 4 / 5 means it agrees with 4 of your 5 picks.

Held-out match

A leave-one-out check: the rule is re-learned with one of your picks held back, then tested on that held-back one. Higher means it generalises rather than just memorising your exact clicks.

Fires on history

How many days across the full price history the rule would have triggered an entry. Very low means the rule is rare and hard to test; very high means it may be too loose.

These three numbers are about trust: do you believe the rule reflects your judgment, not just the specific charts you happened to see.

The walk-forward test

A rule that only works on the data it was built from proves nothing. Walk-forward splits your price history in two and checks whether the rule still holds up on the half it never saw, for the Buy rule and the Sell rule alike.

In-sample (older)

The earlier part of history, up to the split date. The rule already "knows" this period.

Out-of-sample (newer)

The later part of history, after the split date. The honest test, since the rule was never shaped around it.

Trades and win rate are reported separately for each half, so you can compare how the rule performed before and after the split.

The verdict underneath reads as "holds up" when the out-of-sample half stayed reasonably close to the in-sample half, and "looks overfit" when performance fell apart once the rule left the data it was learned from.