Why Treasury Stock Values Do Not Estimate Historical Share Prices
Summary
A company’s balance sheet may report the dollar value and share count of treasury stock, but dividing those figures does not generally recover the market price. The reported amount reflects the accounting basis for shares repurchased and held by the company, rather than a required current market valuation. A close match in one filing can therefore be coincidental.
The discussion points to company disclosures of repurchase activity as a more direct source for prices paid, when a buyback program reports average purchase prices. For historical validation, it also mentions newspaper archives and some annual reports from index-tracking funds that list constituent stock prices. The answer recommends CRSP for reliable historical market data, with Bloomberg as another option. These sources differ in access and frequency: fund filings may be annual, and buyback disclosures exist only when relevant transactions are reported. The exchange is practical guidance rather than a systematic comparison of data vendors or a detailed accounting analysis.
Key ideas
- Treasury stock carrying values do not generally represent current market prices.
- Dividing treasury stock value by its share count may produce a coincidental price estimate.
- Buyback disclosures can provide average prices paid when the company reports them.
- Historical newspapers, certain fund filings, and market-data services can help validate stock prices.
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# Does a 10-K/10-Q report contain an estimate of share market price? # Does a 10-K/10-Q report contain an estimate of share market price? I am trying to find a way to validate available stock market data (because I found so much disagreement between different sources) and went through a 10-K report, hoping to find any mentioning of the market price of common stock of that company (Exxon Mobil in this case). I know that the market price is somewhat irrelevant to a 10-K/10-Q report, but given that these reports are the only really reliable and easily available historical documents about public companies, I hoped to find at least something that can be the basis of an estimate. The only thing I could find is the "common stock held in treasury"-line in the balance sheet. At least Exxon Mobil mentions both a total dollar amount and a number of shares here. By dividing one through the other, I get an estimate for the share price, which just happens to be close to the market value for the 2021 report. Is this coincidendal, is this usually the case, is there maybe even a GAAP requirement to use the market price for calculating this line? Edit: I can't answer this question anymore, but as a note partially answering my question: Amgen in its 10-K for 2022 mentions a stock buyback program that contains the average price they paid for the stock they bought. Unfortunately, not every company has a stock buyback program. Edit2: I eventually found that archives of historical newspapers are a better source of validation. They are available digitally and reach back farther into the past than 10-Q reports (which I think only go back to around 1993 in digital form). Edit3: Even easier to access (although available only annually, not daily) are SEC-filings of index-tracking ETFs like QQQ (CIK 1067839) and SPY (CIK 884394). Some of the filed reports contain prices for all stocks contained in the underlying index. Cross-checking with the newspaper archives shows these prices to agree. ## Answer by phdstudent (score 1) https://quant.stackexchange.com/a/74583 Market price is many times meaningless (given splits and adjustments). Market cap is more relevant. But the most reliable source is CRSP. If you have access to WRDS that is easily available. Alternatively Bloomberg is also pretty good (though not as good as CRSP data).
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