---
title: "Claude in Excel - Nifty50 Return Distribution Analysis (30 days forward) 2008 to 2026"
slug: claude-in-excel-nifty50-return-distribution-analysis
date_published: 2026-02-08T16:00:00.000Z
original_url: https://www.tigzig.com/post/claude-in-excel-nifty50-return-distribution-analysis
source: fresh
processed_at: 2026-02-08T16:00:00.000Z
---

# Claude in Excel - Nifty50 Return Distribution Analysis (30 days forward) 2008 to 2026

![Claude Nifty50 Analysis](/images/blog/c;laudeNifty50_01.png)

Exploits of Claude in Excel - xgboost model, live RBI dashboard and now Live Nifty50 - return distribution analysis (30 days forward) from 2008 to 2026.

[Here's the analysis](https://docs.google.com/spreadsheets/d/1LqOvvTzHCn7JD9LFefH8du3mK8matZPP/edit?usp=drive_link&ouid=104934656995825254465&rtpof=true&sd=true) - with all the raw data also.

I had last run this analysis quite some time back during my full time trading days as a derivative trader. Had taken me quite some time to setup this analysis. Now - probably an hour of wall clock time doing on the side.

## What it does

This is Nifty50 data from 2008 to 2026. After having it run a diagnostics report for sanity check, asked to compute like so:

- For each trading day, compute 30 forward returns (Day 0 to Day 1, Day 0 to Day 2, ... Day 0 to Day 30).
- From those 30 returns, extract quintile cuts (P20, P40, P50, P60, P80) plus positive/negative day counts.
- All return values are in percentage (%). P50 = median return across the 30-day forward window.

## How it went

It did take around 15-20 minutes of brainstorming with Claude, and had to give detailed instructions but once the instructions were clear, it pretty much got it in one shot. Also asked to prepare a 'manual validation' for a single day. All the formatting and column sizing it did on its own. It's pretty much ready to consume.

Had also asked it to output its code. Keep in mind it runs code iteratively in sandbox, so this is a reconstructed code and not the actual code patches.

## Caveat

Prima-facie looks fine. But this one is for live use, so, would be going line by line and replicating via other means and do another tally. Will re-publish the full analysis and insights as it involves a few more pieces.

## Related

- For more on Claude in Excel - what it can do, what it cannot do, comparisons with other related tools - and when to use which - visit the [blog](https://www.tigzig.com/blog)
- If you need to pull multi security price data side by side, date aligned - you can use the [Portfolio Analysis Suite](https://www.tigzig.com/portfolio-analysis-suite). Pulls from Yahoo Finance.