Which S&P 500 companies report earnings before the open, and which after the close?

Of the 501 S&P 500 companies with a page on this site, 90 announced their most recent results mostly before the market opened and 137 mostly after the close (101 during market hours). For 173 of them no session is published, because their filings do not carry a time that can be trusted; each one explains it on its own page. 281 have not moved out of their session once in the last 12 quarters. It all comes from the 8-K with item 2.02 each company files with the SEC, paired with its 10-Q or 10-K: 42,563 quarters since Apr 25, 2003.

32 companies report this week (from 19 to 25 October) → Among them, Procter & Gamble (Thursday 22), American Express (Friday 23) and Union Pacific (Thursday 22).

The table lists 509 companies and the figures above count 501: the 8 missing ones are no longer in the S&P 500 and keep their page because their history is valid.

• AAP: left the S&P 500 and still trades.
• AVB: stopped trading on Aug 14, 2026: Equity Residential absorbed it, at 2.793 shares of the new Vivmark Residential (VMRK) per AVB share. On this site that company is still EQR.
• CAG: left the S&P 500 and still trades.
• CPB: left the S&P 500 and still trades.
• EA: stopped trading on Aug 4, 2026: it was taken private.
• EPAM: left the S&P 500 and still trades.
• POOL: left the S&P 500 and still trades.
• R: left the S&P 500 and still trades.

All 509 companies, one by one

"Usual session" is the session most of its last 12 announcements fell in, with the count next to it: 12/12 is a company that has not moved, 7/12 is one that splits. "After quarter end" is the days between the quarter closing and the announcement. "Lead" is the trading sessions between the announcement and that quarter's 10-Q or 10-K. All three are medians over that same window.

Download all 509 companies as CSV → Free, no account. One row per company, same columns.

Download the full dataset as CSV → One row per filing, not per company: every 8-K with item 2.02 since 2003, with its time, its accession number and its link to sec.gov. It is 16 MB. The first lines are comments starting with "#"; the header is the first line starting with "cik". Public domain (CC0).

How far the announcement runs ahead of the report

A company announces results with a press release and an 8-K, and only afterwards files the full quarterly report with the SEC. That gap is not the same for everyone: of the 501 companies with the figure measured, 328 file the report on the announcement day or the next one, and 53 take eight trading sessions or more. This is the part of the data almost nobody publishes, and it is the same subtraction in both cases: the 10-Q date minus the 8-K date, counted in market sessions.

How this was measured

From the 8-K with item 2.02 ("Results of Operations and Financial Condition"), the form a listed company uses to report results to the SEC. A quarter counts when both pieces exist: the announcement and the report (10-Q or 10-K) filed afterwards. That pairing is what separates the earnings announcement from the other item 2.02 8-Ks the same company may file: production figures, monthly sales, or the same announcement duplicated by its filing agent. Counting raw 8-Ks, companies like Tesla come out half and half, and that is not true.

Each filing's time is converted to New York time using that company's own convention, which is not assumed: in 0 of the file's 808 companies the EDGAR stamp ends in "Z" but already arrives in New York time, and treating it as UTC would move the announcement four or five hours and change its session. That count comes from the convention inferred from the JSON; re-reading the raw SGML headers of 64,936 of the 64,938 filings on 2026-09-06 gives 624 companies converted in every filing, 181 in none and 3 mixed, and the reingest from the SGML is still pending. Each company's identity is its SEC CIK, never its symbol.

What this data does not know

• The exact time of the press release. The 8-K reaches EDGAR after the release goes out, so the time is an UPPER BOUND and the classification answers which session the news landed in, not what minute it was said.
• Nothing before Mar 28, 2003: until March 2003 the 8-K had no dedicated item for results.
• What will happen next quarter. This table measures past habits. Future dates only appear when the company itself has announced them, on that company's page and labelled as such.

The 20 companies that are missing, and why

• B, BL, CC, CR, DEC, E, EC, G, HR, MC, ORC, RC, SND, SY, TY, UA, XE: There is no way to resolve these symbols to an SEC CIK with the data on hand. A company's identity is its CIK, never its symbol, and without the CIK nothing is published.
• FDXF, HONA: these symbols has only 1 quarter with both an announcement and a filed report, and 4 are needed to publish a page: with less than a year, "usually reports" would be a claim bigger than the data.
• TE: The only CIK with filings under the symbol TE belongs to a different entity according to the SEC ("TECO ENERGY INC"), and the CIK this site uses for the company is not in the announcements file. We do not publish a history under a CIK that is not the company's.

Source: EDGAR, the SEC's public database (forms 8-K, 10-Q and 10-K). 65,195 8-K filings with item 2.02 from 808 companies, from Apr 25, 2003 to Oct 21, 2026. This is a list of public facts and of calculations made on them, not financial advice or a recommendation to buy or sell.