David Duncan's Personal Blog

Anchoring a VWAP to the CPI release is a popular way to mark the level that “the market cares about.” On CPI morning I asked whether it actually holds as support or resistance any better than a VWAP anchored on an ordinary day. On Bank of America, across 56 CPI releases, it doesn’t. Not in the sessions that follow, and not in the release window itself. Here is the method, the result, and the falcon-stats command so you can test your own tickers.

DAS Trader Pro produces its end-of-day reports by clicking through two windows. Here is how I automated that export from WSL: a script command over the DAS API to open the account report, and Win32 calls plus the Windows Script Host COM object to drive the Export buttons, the Save As dialog and the Trade Report dialog, scheduled with Task Scheduler.

My morning game plan opens with a gamma-exposure snapshot — the one read that tells you whether the day will mean-revert and pin or trend and extend. Then it started printing UNAVAILABLE. GEX lives and dies on open interest, so here’s why a paid options API wasn’t the fix, and how CBOE’s free public feed brought it back — with the insight that makes the “free and delayed” version actually correct.

In the PAI post I promised that Falcon — my multi-agent trading platform — runs on Podman, Quadlets, and bootable containers. This is that post. Here is how I took a folder of nohup … & shell scripts and turned it into a directory of declarative systemd units that survives a reboot, runs rootless, and moves from my laptop to Fedora Cloud Edition unchanged.

I wired TradingView’s Remix AI chart copilot and a fill-annotated charting pipeline into my trade reviews, so every chart shows my real entries and exits — hosted on my own site and embedded straight into my Notion trading journal.

I finally migrated the Fedora Cloud SIG from pagure.io to forge.fedoraproject.org. Neal Gompa nudged me on the deadline, and the README modernization was the last piece. Here’s what moved, what was broken, and why getting the on-ramp right matters for growing the SIG.

I switched this blog from Pelican’s default theme to gum, fixed an upstream column-grid bug that had been hiding the sidebar, regenerated the code highlighting with monokai, and layered a full Molokai palette over the top — without forking the theme. Here’s the recipe, plus a drop-in CSS file for anyone else running gum.

The Finviz Elite export API is powerful but undocumented — column IDs are bare integers with no spec. Here’s how a JSON Schema catalog solves that and powers a pre-market gap scanner that feeds a daily trading game plan.

I am open-sourcing falcon-stats — a complete trading discipline system built on Daniel Miessler‘s PAI framework. It ingests your DAS Trader data, calculates statistical covariance, scores your discipline, and tells you the truth about your trading. Here is why I built it and how you can use it.

Exploring how to build a Cumulative Volume Delta indicator and compact order flow visualization using IBKR tick data, Python, and modern charting libraries — with Claude as a development partner.