Show HN: PremiumFlow – Managing Option Selling

I've built PremiumFlow to solve a problem I kept running into as an options trader: managing the true cost basis of my positions when selling puts and covered calls.

The Problem: When you sell puts or covered calls, the premium you collect reduces your effective cost basis, but manually tracking this across multiple positions became a mess. Most trading platforms don't account for this properly, making it hard to know your true entry price and whether a trade is actually profitable.

The Solution: PremiumFlow lets you integrate option premiums directly into your LEAPS and stock cost basis.

Now when you:

  - Sell puts against cash reserves, the premium lowers your true entry price when assigned

  - Sell covered calls against your stock holdings, the premium improves your effective cost basis

This means you can finally calculate realistic break-even points and make better decisions on whether to roll, close, or hold positions.

How it works: Track your stock LEAPs, input your option trades, and see your adjusted cost basis automatically calculated. Makes it way easier to manage undefined-risk strategies like put-selling and covered calls at scale.

Check it out: https://premiumflow.base44.app

Would love feedback from the trading and options community here.

Thank you!