# Scalp pit — 5m and 15m Up/Down grid

**The six-market scalping grid: what it shows, how to read the technical gauges, and how one-tap FOK works.**

Section: Trading · Last updated: 2026-07-28

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## What it is

A dense 6-market grid for BTC / ETH / BNB / SOL / XRP / DOGE "Up or Down" 5-minute and 15-minute Polymarket windows. Every row has a live WebSocket top-of-book, one-tap $1 / $5 / $10 FOK buttons for both UP and DOWN sides, a limit-order pad, and a technical-signal strip.

## How to read the gauges

  - **RSI-14** — Wilder-smoothed, 0-100. Green zone (< 30) means oversold: mean-reversion long setup. Red zone (> 70) means overbought.
  - **Momentum** — composite score in [-3, +3] aggregated from RSI zone, EMA9/21 cross, last 3-candle direction, volume spike.
  - **σ** — std-dev of last 12 closes as % of spot. Below 0.15% = SQUEEZE (contraction, expect breakout).
  - **EMA↑ / EMA↓** — is EMA9 above EMA21 on the current timeframe?
  - **VOL↑** — did the last closed candle print > 1.5× recent volume?
  - **Support / Resistance** — min low / max high of last 12 candle wicks, with distance-from-spot in %.

## Order sizing (why FOK ceils to $1)

Polymarket enforces a $1 minimum notional per order. When the ask is 64¢, a naive round-down "1 / 0.64 = 1.56 shares" would cost $0.998 — rejected. We ceil to 2 shares ($1.28 notional) so the order actually makes it through. For $5 and $10 tiles we still use rounding — the surface just displays the actual cost.

## TP/SL for open positions

Every position row exposes TP (Take Profit) and SL (Stop Loss) inputs. Enter a cent price and hit Arm. TP places a GTC SELL at that price. SL runs in your browser and fires a market close when the ask crosses your threshold.

## The risk gate applies

Rolling 24h BUY cap from Settings. TP/SL / manual close are never blocked (they reduce risk).