NineFifteenAM

The journey

One year of building a trading bot, month by month

Not a highlight reel. The full sequence: what I tried, what it cost, and what I'd do differently. Start at the beginning, or jump to whatever you're stuck on.

The journey · 2Mistakes that cost me · 1Market notes · 1Best practices · 1

Every post

5 posts
26 Sept 2026
Why my backtest liedOne sentence that would make someone click this in search results.
The journey
18 Sept 2026
The ₹40,000 bug I shipped on a FridayA missing check turned one rejected order into eleven retries in nine seconds. The code path, the logs, and the guard that now makes it impossible.
Mistakes that cost me
16 Sept 2026
Reading a DRHP in 30 minutes: my checklistThe eight sections I read first in an IPO prospectus, the ratios I compute, and the things that make me close the document.
Market notes
15 Sept 2026
Nine checks before your bot touches real moneyThe pre-live checklist I wish someone had handed me: paper-live parity, kill switches, config hashes, and the failure I only caught on the eighth check.
Best practices
11 Sept 2026
Month 6: the strategy worked, the plumbing didn'tBacktests looked fine, live results didn't match, and the gap had nothing to do with the strategy. What I found when I replayed real order books.
The journey