Lesson

The P2P.Army options scanner: filters, parity, alerts and a checklist

Without filters, the top of the table is taken by far out-of-the-money options with “spreads” of tens of percent — on a penny premium that is worth nothing. We look at which filters to turn on, how to switch between cross-exchange and parity, how to set alerts and what to check before entering.

Published8 min read
A brass periscope over rows of glass keys, one of them glowing gold
Illustration: P2P.Army, AI-generated (Leonardo, GPT Image 2).

We have covered cross-exchange setups (lesson 5) and parity (lesson 6). Now — how to use the scanner day to day so you see opportunities rather than noise.

Filters

Fig. 1. The cross-exchange filter panel, October 6, 2026. The frame has “from 7 days to expiry” and “Near-the-money ≤ 0.15” turned on — all the table screenshots in the course were taken with these settings.Screenshot: p2p.army, 10/6/2026Open source
Cross-exchange mode filters
FilterWhat it doesTip
UnderlyingThe underlying: BTC, ETH, SOL, XRP, DOGE, XAU and othersStart with BTC and ETH — they have the deepest books
TypeCall, put or both—
StrategySignal types: True lock, Relative value, Watch, IV onlyFor locks — True lock only; Relative value — deliberately
ExchangesSetups with both legs on the selected exchangesOnly exchanges where you have an account and margin
Days to expiryA range of days to expiryFrom 7 days: the shortest options have the jumpiest prices
Min net %The minimum spread after estimated feesDo not set 0: drop setups that slippage would eat
Min IV spreadThe minimum volatility gap (0.05 = 5 points)For volatility signals without a price crossing
Near-the-moneyThe strike’s distance from spot |ln(K/S)|0.1–0.15: near the money books are tighter and quotes more reliable

Modes: cross-exchange and parity

The switch above the table changes the mode. Cross-exchange — one option on two exchanges (lesson 5). Put-Call Parity — a call, a put and the underlying on one exchange (lesson 6), with its own filters: direction (conversion or reversal), minimum 24-hour volume, days to expiry. The Search, Favorites, Alerts and Finished modes work as in other P2P.Army scanners: search, favorites, active and fired alerts.

Alerts

Fig. 2. A setup alert: Telegram sends a message when net % or the IV spread reaches the threshold. Once it fires, the alert closes. Paid version screen, October 6, 2026.Screenshot: p2p.army, 10/6/2026Open source

Alerts require a linked Telegram account. There is also a signal subscription for all setups with your thresholds; a separate option sends any True lock regardless of thresholds — worth seeing all of them, because they are rare and disappear quickly.

Pre-entry checklist

  1. 1

    The signal type is clear

    True lock — the same settlement currency. Relative value — you hold coin against USDT and understand where the gap comes from (lesson 4).
  2. 2

    The IV spread explains the price

    If the legs’ IV is the same, the price gap is more likely conversion than a market error.
  3. 3

    Order books on the exchanges

    Open the instruments via the links and check that the bid and ask cover at least your position size.
  4. 4

    Fees with caps

    Calculate fees for both legs, exercise and buying coin for the premium — as in lesson 5.
  5. 5

    Margin for the short leg

    Find out the margin requirement on the short leg’s exchange and keep a buffer for price rises (lesson 8).
  6. 6

    Contract size

    The quantity in coins on both legs must match, taking the contract multiplier into account.
  7. 7

    Setup history

    A setup that has held for hours and shows on the history chart is more reliable than one that flickered.

Frequently asked questions

Which filters should I turn on in the options scanner?

Moneyness no more than 0.1–0.15, at least 7 days to expiry, only your exchanges and a minimum net % above zero. This removes phantom spreads on penny options.

What does Near-the-money mean in the filter?

The strike’s distance from spot, |ln(K/S)|. 0.15 is roughly ±15% of the current price. Near the money, books are tighter and quotes more reliable.

How does a setup alert work?

You set a threshold for net % and/or the IV spread. When the setup reaches it, Telegram sends a message and the alert closes.

How is parity mode different from cross-exchange mode?

Cross-exchange mode compares one option on two exchanges. Parity mode looks for gaps between a call, a put and the underlying on one exchange.

Sources

  1. 1.
    P2P.Army: options arbitrage scanner
    P2P.Army10/31/2026official
  2. 2.
    Fees
    Deribit10/22/2026
  3. 3.
  4. 4.
Tags:#crypto options#options arbitrage
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About the author

Antonio Merkle — crypto expert, arbitrage trader and P2P.Army author

Crypto expert, arbitrage trader and investor

Crypto expert and hands-on crypto arbitrage trader, investor and software developer with over 20 years of experience. On the P2P.Army blog he covers exchange news, P2P and cross-exchange arbitrage.

  • Crypto arbitrage
  • P2P arbitrage
  • Cross-exchange arbitrage
  • Crypto exchanges
  • Investing
  • Software development
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