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Position Size Calculator Pro: Stocks, Crypto, Forex, Futures

Chrome extension by Rabbit Hole Solutions · Productivity · Tools

  • Trader

A Chrome extension in Productivity · Tools with 2 users, barely installed.

Specific sites only: 1 match pattern.

What the developer says, and 5 screenshots

Loading from the Chrome Web Store. Open the listing if it does not appear.

Users
2 (the store no longer states an audience; this is the last figure it published)
Rating
not rated yet
Users, last 21 days
+2
Version
1.1.0
Updated in the store
2026-10-13
Published
2026-10-12
Manifest
V3
Browser access
1 permission, 1 site pattern

How it has moved

Users
+2 since 13.10
0-3 · 6 readings
2026-10-13: appeared in the store2026-10-13: released 1.1.0
  1. 2026-10-130appeared in the storereleased 1.1.0
  2. 2026-10-201
  3. 2026-10-232
  4. 2026-10-263
  5. 2026-11-012
  6. 2026-11-022
Users
+2 since 13.10
0-3 · 6 readings
2026-10-13: appeared in the store2026-10-13: released 1.1.0
  1. 2026-10-130appeared in the storereleased 1.1.0
  2. 2026-10-201
  3. 2026-10-232
  4. 2026-10-263
  5. 2026-11-012
  6. 2026-11-022

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing up to 2 times a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

Specific sites only: 1 match pattern.

  • https://api.gumroad.com/*
  • Store data in your browser storage

The full permission history for this extension

Version history

  1. Version 1.1.0 · Asked for more permissions (2, was 1) (changed: site access)

What changed recently

  1. Package size changed
  2. Asked for more permissions (2, was 1) (changed: site access)
  3. Store description rewritten
Show the remaining 3
  1. Renamed from "Position Size Calculator Lite (Stocks)" to "Position Size Calculator Pro: Stocks, Crypto, Forex, Futures"
  2. Released version 1.1.0 (was 1.0.0)
  3. Appeared in the store

The publisher

Rabbit Hole Solutions.

Like this one

Listings the catalog judges closest in what they say they do.

  1. Position Size Calculator Describes nearly the same job, smaller audience 190 users ★ 5.0
  2. Quantum AI Platform - Risk & Position Size Calculator Describes nearly the same job, smaller audience 3 users
  3. Futures Position Sizer Describes nearly the same job, smaller audience 17 users
  4. Futures Position Size Describes nearly the same job, smaller audience 7 users
  5. Futures Position Calculator Describes nearly the same job, smaller audience 38 users ★ 5.0

The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.

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The badge shows the audience and rating from our last pass over the store and links back to this page.

Users and rating on Ext Ops Panel

Markdown

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HTML

<a href="https://extops.dev/extensions/bidbfbgeinejjpkaogalidjigbiinegm"><img src="https://extops.dev/extensions/bidbfbgeinejjpkaogalidjigbiinegm/badge.svg" alt="Users and rating on Ext Ops Panel" height="20"></a>

Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store last changed these figures on 2026-11-01. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built