The Scenario
You are a financial analyst. It is 7:45 AM on a Monday and your portfolio review is at 9 AM. Two hundred stock tickers sit in column A of an Excel workbook, the Watchlist tab, collected over the weekend from three different watchlists. You need current price, market cap, and latest EPS in columns B, C, and D before the meeting starts.
The bad version of this morning:
- You open the API Ninjas stock endpoint in your browser
- You call it for the first ticker, read the JSON, find the three fields you need, paste each into B2, C2, D2
- You repeat for ticker two
- By ticker fifteen you are misaligning rows
- By ticker forty you have pasted market cap into the EPS column twice
- You walk into the 9 AM with sixty rows done and 140 blank.
The fast version is one prompt and the whole column fills while you pour a second coffee.
The Easy Way: One Prompt in SheetXAI
SheetXAI is an AI agent inside your Excel workbook. It reads your ticker list and calls API Ninjas for every row, then writes the results back into the columns you describe.
Open the SheetXAI sidebar and type:
For every ticker in column A of the Watchlist tab, fetch the current stock price, market cap, and latest EPS from API Ninjas and write the results into columns B, C, and D. If a ticker returns no data, write "N/A" in each column and flag the row yellow.
SheetXAI loops through all 200 rows, calls the API Ninjas stock endpoint for each, unpacks the three fields, and writes them back to the workbook.
What You Get
A fully populated watchlist with three enrichment columns:
- Column B: Current price — live at the time of the run
- Column C: Market cap — in the API Ninjas standard unit
- Column D: Latest EPS — most recently reported figure
- Flagged rows — any ticker that returned no data is highlighted yellow
The data is grounded in the actual API response. If a ticker is newly listed or delisted, the flag tells you instead of silently filling wrong data.
Want the S&P 500 constituent list pulled in fresh and matched against your watchlist? Ask in the same prompt and SheetXAI writes the join to a new tab in the workbook.
What If the Data Is Not Quite Ready
Real ticker lists have edge cases. SheetXAI handles them inline.
When ticker symbols have inconsistent formatting
Your watchlist came from three sources, some have exchange prefixes (NASDAQ:AAPL), some don't, some are lowercase.
Normalize all tickers in column A of the Watchlist tab to uppercase symbols without exchange prefix. Then fetch price, market cap, and EPS from API Ninjas and write into columns B, C, and D.
When you only want data for tickers above a market cap threshold
You want to skip micro-caps below $500M for this analysis.
For every ticker in column A, fetch market cap from API Ninjas and write it into column B. If market cap is below 500000000, mark column C "SKIP" and leave D and E blank. For tickers above the threshold, fetch current price and EPS and write into columns D and E.
When you need both live price and the S&P 500 list
You want to flag which of your tickers are S&P 500 constituents before presenting to the committee.
Pull the S&P 500 constituent list from API Ninjas and paste it into a new tab called SP500 with columns for ticker, company name, and sector. Then go back to the Watchlist tab, check each ticker in column A against SP500, and write "S&P 500" or "Non-index" into column E.
When the full enrichment is one prompt
You have raw tickers, no formatting, no filtering, and you need a clean enrichment-plus-analysis run in one shot.
Normalize the tickers in column A of the Watchlist tab to uppercase with no prefix. Fetch current price, market cap, and EPS from API Ninjas for each. Write into columns B–D. Mark any ticker with market cap under 500M in column E as "Small Cap." Flag N/A rows in column F. Then calculate the average EPS across all valid rows and put it in cell H1 with the label "Portfolio Avg EPS."
The pattern: cleaning and enrichment in one instruction so the workbook is analysis-ready when you open it at 8:55.
Try It
Get the 7-day free trial of SheetXAI and open any workbook with stock tickers, then ask it to pull price, market cap, and EPS using API Ninjas. The API Ninjas integration is included in every SheetXAI plan. See also how to enrich a company list with full profiles in Excel or the API Ninjas in Excel overview.