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Markets Updated dailyOperating research 176 companies

Definitions

Prices use actual trading dates; operating data retains its reporting period ends. Different units and frequencies are shown in separate panels on a shared timeline. Records missing a date or value remain blank. Source-version dates may follow the initial disclosure and do not establish that the data was known at an earlier time. Relationship analysis requires at least 8 valid quarterly pairs; daily price observations are not counted as operating samples.

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Selected series1

Share priceCOHR Closing price

Operating-data date

2026-11-04Last value in range

Time rangeCOHR · Closing price

1987-10-02 — 2026-11-04

Methodology and controls

Each panel has its own value axis; dates and the cursor are synchronized. Dense daily plots retain the first, last, highest and lowest observations in each pixel interval. The cursor, data table, CSV and statistics still use all original values. US daily prices are checked against the verified 1997–2027 trading calendar. A missing expected trading day breaks the line; weekends and recorded exchange holidays do not. Some daily market or calendar coverage is unverified. Only consecutive calendar dates are connected; gaps between dates are not assumed to be complete. Drag within the chart to zoom and move the range window below to pan. Quarterly values are not filled across other trading days.

Relationship analysisSelect two series to inspect correlation, regression and residuals.Paired observations: 0

X · Explanatory seriesY · Observed seriesPairing lagPrices are matched to each operating period; quarterly lags apply to two operating series.

Valid samples0pairsNo comparable periods

Pearson correlation coefficient—−1 to +1

Goodness of fit R²—In sample · with intercept

Root mean square error— · Same unit as Y

Select two series to analyze their relationship.

Statistics use only the selected X and Y series after the chosen transformation within the current date range. At least 8 valid quarterly pairs are required. Quarters are matched by the calendar quarter containing the actual period end; fiscal quarter boundaries may differ across companies. Hiding a legend series does not change the sample or normalization base. Correlation and lagged regression describe the observed sample; they do not establish causation or predict investment returns.

Metric definitions and sourcesDefinitions for each series, with actuals and forecasts distinguished1 series

COHR · Closing price

Actual trading dayUSD9847 daily observationsHistory cache awaiting update

Source-declared split-adjusted close; excludes dividend reinvestment · Through 2026-11-04

Actual trading dates and closing prices are retained. No observations are generated for market holidays or dates not included. Price changes exclude dividend reinvestment and do not represent total returns.

Price sources and company details ↗

Observation tableRaw values, dates, sources and inputsVerify and export

Period end / reporting period	Chart placement date	Raw value · USD	Displayed value · USD	Source version date	Calculations and citations
2026-11-042026-11-04	2026-11-04	195.09	195.09	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-11-032026-11-03	2026-11-03	207.49	207.49	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-11-022026-11-02	2026-11-02	199.95	199.95	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-10-302026-10-30	2026-10-30	210.32	210.32	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-10-292026-10-29	2026-10-29	237.22	237.22	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-10-282026-10-28	2026-10-28	239.59	239.59	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-10-272026-10-27	2026-10-27	235.79	235.79	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-10-262026-10-26	2026-10-26	221.50	221.50	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-10-232026-10-23	2026-10-23	209.29	209.29	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-10-222026-10-22	2026-10-22	207.82	207.82	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-10-212026-10-21	2026-10-21	237.53	237.53	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-10-202026-10-20	2026-10-20	231.80	231.80	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-10-192026-10-19	2026-10-19	232.02	232.02	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-10-162026-10-16	2026-10-16	232.90	232.90	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-10-152026-10-15	2026-10-15	250.60	250.60	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-10-142026-10-14	2026-10-14	263.32	263.32	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-10-132026-10-13	2026-10-13	289.98	289.98	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-10-122026-10-12	2026-10-12	288.02	288.02	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-10-092026-10-09	2026-10-09	312.62	312.62	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-10-082026-10-08	2026-10-08	302.35	302.35	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-10-072026-10-07	2026-10-07	334.56	334.56	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-10-062026-10-06	2026-10-06	338.36	338.36	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-10-052026-10-05	2026-10-05	333.64	333.64	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-10-022026-10-02	2026-10-02	337.04	337.04	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-10-012026-10-01	2026-10-01	319.19	319.19	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-09-302026-09-30	2026-09-30	287.81	287.81	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-09-292026-09-29	2026-09-29	292.21	292.21	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-09-282026-09-28	2026-09-28	282.45	282.45	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-09-252026-09-25	2026-09-25	295.83	295.83	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-09-242026-09-24	2026-09-24	290.61	290.61	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-09-232026-09-23	2026-09-23	300.60	300.60	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-09-222026-09-22	2026-09-22	310.39	310.39	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-09-212026-09-21	2026-09-21	321.52	321.52	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-09-182026-09-18	2026-09-18	317.36	317.36	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-09-172026-09-17	2026-09-17	295.98	295.98	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-09-162026-09-16	2026-09-16	289.93	289.93	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-09-152026-09-15	2026-09-15	271.17	271.17	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-09-142026-09-14	2026-09-14	266.50	266.50	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-09-112026-09-11	2026-09-11	305.37	305.37	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-09-102026-09-10	2026-09-10	293.17	293.17	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-09-092026-09-09	2026-09-09	303.48	303.48	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-09-082026-09-08	2026-09-08	301.88	301.88	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-09-042026-09-04	2026-09-04	281.86	281.86	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-09-032026-09-03	2026-09-03	264.41	264.41	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-09-022026-09-02	2026-09-02	268.64	268.64	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-09-012026-09-01	2026-09-01	272.03	272.03	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-08-312026-08-31	2026-08-31	277.83	277.83	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-08-282026-08-28	2026-08-28	279.20	279.20	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-08-272026-08-27	2026-08-27	295.39	295.39	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/
2026-08-262026-08-26	2026-08-26	294.37	294.37	Not specified	Inputs and citations As-reported value https://finance.yahoo.com/quote/COHR/history/

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Source-version dates for operating metrics may refer to later revisions, not the first public release. Missing values are retained; neither price nor operating data is interpolated.