IONS earnings date, and what happened the last 4 times

Next report

Wed Nov 4

Quality Score today -4

Before the open, in 9 days. Expected: the company has not confirmed it.

IONS closed higher after 1 of its last 4 reports. On average it closed -1.4% the session after a report.

The moment IONS 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 IONS's last 4 reports

IONS's last 4 earnings reports
Reported	Score going in	Gap	Reaction	5 sessions
Jul 29, 20262026 · Before open	0estimated	-0.4%	-2.3%	-0.4%
Apr 29, 20262026 · Before open	8estimated	+0.4%	+4.3%	+4.8%
Feb 25, 20262026 · Before open	18estimated	-4.3%	-5.3%	-8.0%
Oct 29, 20252025 · Before open	16estimated	-1.6%	-2.3%	-0.9%

Jul 29, 2026, before the open: that session IONS opened -0.4% and closed -2.3%, and five sessions on it stood -0.4%. Its Quality Score going in was 0 (Below Average), estimated.
Apr 29, 2026, before the open: that session IONS opened +0.4% and closed +4.3%, and five sessions on it stood +4.8%. Its Quality Score going in was 8 (Average), estimated.
Feb 25, 2026, before the open: that session IONS opened -4.3% and closed -5.3%, and five sessions on it stood -8.0%. Its Quality Score going in was 18 (Excellent), estimated.
Oct 29, 2025, before the open: that session IONS opened -1.6% and closed -2.3%, and five sessions on it stood -0.9%. Its Quality Score going in was 16 (Excellent), estimated.

Across these 4 reports IONS opened higher after 1 of 4 and closed higher after 1 of 4; on average it opened -1.5%, closed -1.4%, and stood -1.1% five sessions on. Its Quality Score is -4 today, against 0 going into its Jul 29, 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: -5.3% after the Feb 25, 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 IONS's earnings

As of Oct 26, 2026: Ionis Pharmaceuticals (IONS): expected to report Wed Nov 4, before the open. IONS closed higher after 1 of its last 4 reports. Its Quality Score is -4 (Poor). Scores as of 10:16 PM ET, 15 minutes behind.

When is IONS's next earnings date?

Expected to report Wed Nov 4, before the open, a date Breakaway expects from the company's usual timing; the company has not confirmed it. IONS closed higher after 1 of its last 4 reports. Past behavior, not a forecast.

Does IONS report before or after the market?

IONS is expected to report Wed Nov 4, before the open. Its last 4 reports came before the open.

How did IONS stock react to its last earnings report?

Jul 29, 2026, before the open: that session IONS opened -0.4% and closed -2.3%, and five sessions on it stood -0.4%.

Does IONS stock usually go up after earnings?

IONS closed higher after 1 of its last 4 reports. On average it closed -1.4% the session after a report, after opening -1.5%. Past behavior, not a forecast.

Ionis Pharmaceuticals' page has its Quality Score, its chart, and its insiders' trades. Everyone reporting beside it: next week's earnings.