PACB earnings date, and what happened the last 4 times

Next report

Wed Nov 4

Quality Score today 8

After the close, in 9 days. Confirmed by the company.

PACB closed higher after 0 of its last 4 reports. On average it closed -9.8% the session after a report.

The moment PACB reports

Its figures, in plain words
How it moves after, beside its last four
Its Quality Score going in, and after

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What happened after PACB's last 4 reports

PACB's last 4 earnings reports
Reported	Score going in	Gap	Reaction	5 sessions
Aug 5, 20262026 · After close	-2estimated	0.0%	-10.4%	-14.6%
May 7, 20262026 · After close	-1estimated	-7.9%	-14.6%	-26.7%
Feb 12, 20262026 · After close	-2estimated	+2.7%	-7.1%	-12.5%
Nov 5, 20252025 · After close	-1estimated	-5.7%	-7.0%	-9.1%

Aug 5, 2026, after the close: the next session PACB opened 0.0% and closed -10.4%, and five sessions on it stood -14.6%. Its Quality Score going in was -2 (Poor), estimated.
May 7, 2026, after the close: the next session PACB opened -7.9% and closed -14.6%, and five sessions on it stood -26.7%. Its Quality Score going in was -1 (Poor), estimated.
Feb 12, 2026, after the close: the next session PACB opened +2.7% and closed -7.1%, and five sessions on it stood -12.5%. Its Quality Score going in was -2 (Poor), estimated.
Nov 5, 2025, after the close: the next session PACB opened -5.7% and closed -7.0%, and five sessions on it stood -9.1%. Its Quality Score going in was -1 (Poor), estimated.

Across these 4 reports PACB opened higher after 1 of 4 and closed higher after 0 of 4; on average it opened -2.7%, closed -9.8%, and stood -15.7% five sessions on. Its Quality Score is 8 today, against -2 going into its Aug 5, 2026 report.

Gap: where the stock opened the session after the report. Reaction: where that session closed. Both against the close before the report. The largest of the 4: -14.6% after the May 7, 2026 report. A score marked estimated was worked out afterwards from that day's prices and filings; Breakaway has recorded every score live since Sep 9 2026.

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Questions about PACB's earnings

As of Oct 26, 2026: Pacific Biosciences of California (PACB): reports Wed Nov 4, after the close. PACB closed higher after 0 of its last 4 reports. Its Quality Score is 8 (Average). Scores as of 10:16 PM ET, 15 minutes behind.

When is PACB's next earnings date?

Reports Wed Nov 4, after the close, a date the company confirmed. PACB closed higher after 0 of its last 4 reports. Past behavior, not a forecast.

Does PACB report before or after the market?

PACB reports Wed Nov 4, after the close. Its last 4 reports came after the close.

How did PACB stock react to its last earnings report?

Aug 5, 2026, after the close: the next session PACB opened 0.0% and closed -10.4%, and five sessions on it stood -14.6%.

Does PACB stock usually go up after earnings?

PACB closed higher after 0 of its last 4 reports. On average it closed -9.8% the session after a report, after opening -2.7%. Past behavior, not a forecast.

Pacific Biosciences of California's page has its Quality Score, its chart, and its insiders' trades. Everyone reporting beside it: next week's earnings.