Opera Limited - American Depositary Shares (OPRA) SEC filings

OPRA SEC filings moved a median of -0.24% by the close. OPRA SEC filings — 10-K, 10-Q, 8-K and the rest — each read against the price at its own news timestamp. Back to the OPRA overview →

35 measured OPRA SEC filing events.

Where these OPRA SEC filings landedvs 34 measured OPRA SEC filing reactions
OPRA SEC filingMiddle 50% · -2.92% to +1.97%Zero: 0.00%Median: -0.24%Median -0.24%-4.00%0+4.00%
Middle 50% of OPRA SEC filing reactions-2.92% to +1.97%
Median reaction (to close)-0.24%
Measured reactions34
Point-in-time · zero look-ahead

Half of the 34 OPRA SEC filing events with a measured close landed between -2.92% and +1.97%; 35% closed up.

DateHeadlineEvent5-minTo close
Form 6-K Opera Ltd For: Aug 19SEC filing · Form 6-K-1.53%-0.98%
Form 6-K Opera Ltd For: Jun 10SEC filing · Form 6-K-0.40%+0.11%
Form 6-K Opera Ltd For: Apr 28SEC filing · Form 6-K+5.34%+2.36%
Form 20-F Opera Ltd For: Dec 31SEC filing · Form 20-F-0.15%-0.22%
Opera Files Its 2025 Annual Report on Form 20-FPress release-0.15%-0.22%
Form 6-K Opera Ltd For: Feb 26SEC filing · Form 6-K-1.15%+7.01%
Form 6-K Opera Ltd For: Feb 02SEC filing · Form 6-K+5.34%+1.73%
Form S-8 Opera LtdSEC filing · Form S-8-1.13%-5.21%
Form 6-K Opera Ltd For: Dec 11SEC filing · Form 6-K+0.79%+4.15%
Form S-8 POS Opera LtdSEC filing · Form S-8+0.79%+4.15%
Form 6-K Opera Ltd For: Dec 09SEC filing · Form 6-K-0.72%-0.57%
Form 6-K Opera Ltd For: Nov 07SEC filing · Form 6-K+0.66%+2.05%
Form 6-K Opera Ltd For: Oct 29SEC filing · Form 6-K-2.98%-4.95%
Form 6-K Opera Ltd For: Oct 10SEC filing · Form 6-K-0.24%-3.18%
Form 6-K Opera Ltd For: Aug 19SEC filing · Form 6-K-6.91%—
Form 6-K Opera Ltd For: Jun 10SEC filing · Form 6-K-1.00%-0.21%
Form 6-K Opera Ltd For: Apr 28SEC filing · Form 6-K-0.70%-1.84%
Form 20-F Opera Ltd For: Dec 31SEC filing · Form 20-F-1.42%-3.37%
Opera Files Its 2024 Annual Report on Form 20-FPress release-1.42%-3.37%
Form 6-K Opera Ltd For: Feb 27SEC filing · Form 6-K-2.13%-12.76%
Form 6-K Opera Ltd For: Dec 12SEC filing · Form 6-K+1.52%+4.62%
Form 6-K Opera Ltd For: Dec 03SEC filing · Form 6-K-0.61%-4.79%
Form 6-K Opera Ltd For: Nov 04SEC filing · Form 6-K+0.11%-2.14%
Form 6-K Opera Ltd For: Oct 29SEC filing · Form 6-K+1.32%+2.31%
Form 6-K Opera Ltd For: Aug 22SEC filing · Form 6-K+8.43%+3.64%
Form 6-K Opera Ltd For: Jun 30SEC filing · Form 6-K-1.77%-0.26%
Form 20-F/A Opera Ltd For: Dec 31SEC filing · Form 20-F+0.24%+1.44%
Form 6-K Opera Ltd For: Apr 30SEC filing · Form 6-K-4.08%-1.09%
Form 20-F Opera Ltd For: Dec 31SEC filing · Form 20-F-0.07%-0.28%
Opera Files Its 2023 Annual Report on Form 20-FPress release-0.07%-0.28%
Form 6-K Opera Ltd For: Apr 30SEC filing · Form 6-K-1.50%-6.00%
Form 6-K Opera Ltd For: Feb 29SEC filing · Form 6-K-4.63%-4.47%
Form 6-K Opera Ltd For: Dec 31SEC filing · Form 6-K-0.28%+2.15%
Form 6-K Opera Ltd For: Oct 31SEC filing · Form 6-K+0.83%-0.08%
Form 6-K Opera Ltd For: Oct 31SEC filing · Form 6-K-0.62%+0.00%
That’s how OPRA usually reacts to SEC filings — get an email when it moves on news →
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Same sector, same measurement: percent move vs. the price at the news timestamp, read at 30 minutes. Sample sizes differ, so the medians are comparable but the confidence behind them is not. These are each name’s all-news baseline, not its SEC filings — that is what the link opens.