Issued 2026-09-16 at $509.91 · now $509.91 (2026-09-16, +0.0% since)
Based on its own history, a month from the 2026-09-16 close, CHE has typically landed between $458.23 and $565.37 — a range of −10.1% to +10.9% from the issuance price $509.91.
- Actual close
- Typical path (median)
- Middle 50% of outcomes
- 90% range
5,003 overlapping 1 month windows · 2006-09-26 – 2026-08-17 · basis climatology · forecast (batch). Probability up 53.9% (90% CI 51.7–56.1%, ≈1,408 obs).
The cone is anchored at the 2026-09-16 issuance close ($509.91) — the price the forecast resolves against on 2026-10-15, not the latest close. The drawn path shape is illustrative (bands widen with √t); every labeled number is real — the anchor, the scored batch p90/IQR endpoints, and the typical move.
Where CHE has typically landed a month from the 2026-09-16 close of $509.91 — the range is history, not a prediction.
- now $509.91 (+0.0%)
- typicalThe typical outcome — half of similar past periods did better and half did worse (not an average, so a few wild periods don't skew it). $510.44 (+0.1%)
- middle 50%The central range of outcomes — half of similar past periods landed inside it, a quarter finished above, a quarter below. $490.39–$530.48
- 90% rangeA nine-in-ten range — in about nine of every ten similar past periods the outcome stayed within these bounds. $458.23–$565.37
| Start | Return | Max drop | Max rise |
|---|---|---|---|
| 3 worst | |||
| 2008-09-18 | −28.9% | −31.8% | +0.0% |
| 2008-09-11 | −28.7% | −28.7% | +4.6% |
| 2008-09-16 | −28.2% | −29.0% | +4.2% |
| 3 best | |||
| 2007-04-09 | +34.0% | +0.0% | +34.0% |
| 2007-04-30 | +33.3% | +0.0% | +36.7% |
| 2007-01-22 | +32.7% | +0.0% | +32.7% |
5,003 overlapping windows · 2006-09-26 – 2026-09-16 · not cherry-picked
Seasonality · by month iHow this security has tended to do in each calendar month historically — a frequency, never a prediction.
iFor each calendar month, the share of years this security closed higher than the month before, and the average month-over-month return, over ~20 years of its own price history. Cells are shaded by average return. This is historical frequency, not a prediction — no month is a signal.Up-frequency and average month-over-month return · historical frequency, not a prediction
Reported insider & political trades
Every Form 4 the people closest to this company have filed with the SEC — plotted against the share price, aggregated by month, and shown with the gap between when each trade happened and when it was disclosed. A public record, not advice.
| Date | Person | Role | Action | Shares @ price | Value | Ownership Δ | vs S&P 1m | vs S&P 6m | Owned after | Filing |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-08-21 | MCNAMARA KEVIN J | director | Sale | 2,000 @ $541.16 | $1.1M | −2.8% of holding | not yet — horizon still open | not yet — horizon still open | 70,418 | Form 4 · filed 3 days after the trade |
| 2026-08-21 | LEE SPENCER S | officer | Sale | 1,000 @ $541.04 | $541K | −6.7% of holding | not yet — horizon still open | not yet — horizon still open | 13,912 | Form 4 · filed 3 days after the trade |
| 2026-08-03 | MCNAMARA KEVIN J | director | Sale | 2,000 @ $539.51 | $1.1M | −2.8% of holding | −5.2% | not yet — horizon still open | 70,418 | Form 4 · filed 1 day after the trade |
| 2026-07-31 | GRACE PATRICK P | director | Sale | 190 @ $532.00 | $101K | −5.1% of holding | −5.2% | not yet — horizon still open | 3,533 | Form 4 · filed 3 days after the trade |
| 2026-06-09 | LINDELL ANDREA R | director | Sale | 1,347 @ $447.33 | $603K | −22.7% of holding | +6.8% | not yet — horizon still open | 4,578 | Form 4 · filed 1 day after the trade |
| 2026-05-29 | WALSH GEORGE J III | director | Sale | 500 @ $437.83 | $219K | −13.5% of holding | +10.3% | not yet — horizon still open | 3,209 | Form 4 · filed same day |
| 2026-05-08 | GRACE PATRICK P | director | Sale | 60 @ $425.78 | $26K | −1.8% of holding | +5.4% | not yet — horizon still open | 3,337 | Form 4 · filed same day |
| 2026-05-01 | MCNAMARA KEVIN J | director | Sale | 2,000 @ $421.13 | $842K | −2.2% of holding | −6.6% | not yet — horizon still open | 90,219 | Form 4 · filed 3 days after the trade |
| 2026-03-27 | MCNAMARA KEVIN J | director | Sale | 1,500 @ $369.37 | $554K | −1.6% of holding | +2.0% | not yet — horizon still open | 92,219 | Form 4 · filed 3 days after the trade |
| 2026-03-12 | MCNAMARA KEVIN J | director | Sale | 2,000 @ $403.18 | $806K | −2.1% of holding | −6.3% | +14.0% | 93,719 | Form 4 · filed 1 day after the trade |
| 2025-11-24 | MCNAMARA KEVIN J | director | Sale | 2,000 @ $437.55 | $875K | −2.1% of holding | −3.8% | −12.4% | 94,197 | Form 4 · filed 1 day after the trade |
| 2025-09-26 | MCNAMARA KEVIN J | director | Sale | 3,000 @ $461.28 | $1.4M | −3.0% of holding | −9.0% | −14.9% | 96,197 | Form 4 · filed 3 days after the trade |
| 2025-09-09 | GRACE PATRICK P | director | Sale | 150 @ $463.39 | $70K | −4.2% of holding | −9.8% | −17.3% | 3,397 | Form 4 · filed 1 day after the trade |
| 2025-08-05 | MCNAMARA KEVIN J | director | Sale | 2,000 @ $428.55 | $857K | −2.0% of holding | +4.2% | −6.0% | 99,197 | Form 4 · filed same day |
| 2025-08-04 | Westfall Nicholas Michael | officer | Sale | 10,012 @ $421.91 | $4.2M | −100.0% of holding | +6.7% | −7.3% | 0 | Form 4 · filed 1 day after the trade |
| 2025-08-04 | WALSH GEORGE J III | director | Purchase | 200 @ $417.10 | $83K | +6.0% of holding | +6.7% | −7.3% | 3,523 | Form 4 · filed 1 day after the trade |
| 2025-05-16 | LEE SPENCER S | officer | Sale | 1,500 @ $577.99 | $867K | −9.3% of holding | −5.7% | −38.4% | 14,627 | Form 4 · filed 3 days after the trade |
| 2025-05-07 | LEE SPENCER S | officer | Sale | 1,500 @ $577.86 | $867K | −8.5% of holding | −9.3% | −45.2% | 16,127 | Form 4 · filed 1 day after the trade |
| 2025-05-05 | MCNAMARA KEVIN J | director | Sale | 1,500 @ $576.45 | $865K | −1.5% of holding | −8.2% | −45.3% | 101,197 | Form 4 · filed 1 day after the trade |
| 2025-03-31 | MCNAMARA KEVIN J | director | Sale | 1,000 @ $615.33 | $615K | −1.0% of holding | −4.6% | −46.8% | 101,679 | Form 4 · filed 1 day after the trade |
| 2025-03-06 | MCNAMARA KEVIN J | director | Sale | 2,000 @ $593.67 | $1.2M | −1.9% of holding | +12.0% | −35.2% | 102,679 | Form 4 · filed 1 day after the trade |
| 2025-03-03 | LEE SPENCER S | officer | Sale | 1,326 @ $592.25 | $785K | −7.0% of holding | +8.2% | −31.7% | 17,627 | Form 4 · filed same day |
| 2024-12-30 | Judkins Brian C | officer | Purchase | 145 @ $519.50 | $75K | +9.5% of holding | +4.2% | −17.1% | 1,678 | Form 4 · filed same day |
The vs-S&P columns are a labeled look-back on what the stock did after each filing, measured against the index over the same window. Descriptive history, not a claim about the person or a reason to trade.
114 award / exercise / gift records — not counted as purchases
Awards, option exercises, gifts and tax-withholding disposals are shown separately and never counted as open-market purchases or sales — they carry no conviction information.
| Date | Person | Role | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|---|
| 2026-08-10 | Judkins Brian C | officer | Withheld for tax | 5,878 | 3,344 | Form 4 |
| 2026-08-10 | Judkins Brian C | officer | Option exercise | 6,786 | 9,222 | Form 4 |
| 2026-08-10 | Judkins Brian C | officer | Option exercise | 6,786 | 31,281 | Form 4 |
| 2026-08-05 | Wherley Joel L | officer | Withheld for tax | 2,270 | 1,181 | Form 4 |
| 2026-08-05 | Wherley Joel L | officer | Option exercise | 2,599 | 30,220 | Form 4 |
| 2026-08-05 | Wherley Joel L | officer | Option exercise | 2,599 | 3,451 | Form 4 |
| 2026-08-03 | MCNAMARA KEVIN J | director | Option exercise | 2,001 | 264,158 | Form 4 |
| 2026-07-31 | MCNAMARA KEVIN J | director | Withheld for tax | 19,802 | 72,418 | Form 4 |
| 2026-07-31 | MCNAMARA KEVIN J | director | Option exercise | 2,001 | 92,220 | Form 4 |
| 2026-05-18 | McCarthy Eileen P | director | Award / grant | 386 | 1,241 | Form 4 |
| 2026-05-18 | Heaney Christopher J | director | Award / grant | 386 | 2,775 | Form 4 |
| 2026-05-18 | DeLyons Ron | director | Award / grant | 386 | 2,052 | Form 4 |
| 2026-05-18 | Mount John Meredith Jr. | director | Award / grant | 386 | 1,316 | Form 4 |
| 2026-05-18 | WALSH GEORGE J III | director | Award / grant | 386 | 3,709 | Form 4 |
| 2026-05-18 | GRACE PATRICK P | director | Award / grant | 386 | 3,723 | Form 4 |
| 2026-05-18 | LINDELL ANDREA R | director | Award / grant | 386 | 5,925 | Form 4 |
| 2026-02-13 | MCNAMARA KEVIN J | director | Option exercise | 2,714 | 96,911 | Form 4 |
| 2026-02-13 | MCNAMARA KEVIN J | director | Withheld for tax | 1,192 | 95,719 | Form 4 |
| 2026-02-13 | LEE SPENCER S | officer | Option exercise | 499 | 15,066 | Form 4 |
| 2026-02-13 | Witzeman Michael D | officer | Option exercise | 413 | 6,073 | Form 4 |
| 2026-02-13 | Judkins Brian C | officer | Option exercise | 351 | 2,538 | Form 4 |
| 2026-02-13 | Wherley Joel L | officer | Option exercise | 273 | 932 | Form 4 |
| 2026-02-13 | HUTTON THOMAS C | director | Option exercise | 199 | 32,553 | Form 4 |
| 2026-02-13 | LEE SPENCER S | officer | Withheld for tax | 154 | 14,912 | Form 4 |
| 2026-02-13 | Witzeman Michael D | officer | Withheld for tax | 120 | 5,953 | Form 4 |
| 2026-02-13 | Judkins Brian C | officer | Withheld for tax | 102 | 2,436 | Form 4 |
| 2026-02-13 | Wherley Joel L | officer | Withheld for tax | 80 | 852 | Form 4 |
| 2026-02-13 | HUTTON THOMAS C | director | Withheld for tax | 72 | 32,481 | Form 4 |
| 2026-02-13 | Witzeman Michael D | officer | Award / grant | 1,394 | 3,464 | Form 4 |
| 2026-02-13 | Wherley Joel L | officer | Option exercise | 0 | 932 | Form 4 |
| 2026-02-13 | Wherley Joel L | officer | Option exercise | 220 | 1,290 | Form 4 |
| 2026-02-13 | Wherley Joel L | officer | Option exercise | 220 | 1,070 | Form 4 |
| 2026-02-13 | Wherley Joel L | officer | Award / grant | 1,142 | 2,212 | Form 4 |
| 2026-02-13 | HUTTON THOMAS C | director | Option exercise | 0 | 32,553 | Form 4 |
| 2026-02-13 | HUTTON THOMAS C | director | Option exercise | 160 | 774 | Form 4 |
| 2026-02-13 | HUTTON THOMAS C | director | Option exercise | 160 | 614 | Form 4 |
| 2026-02-13 | HUTTON THOMAS C | director | Award / grant | 374 | 988 | Form 4 |
| 2026-02-13 | LEE SPENCER S | officer | Option exercise | 0 | 15,066 | Form 4 |
| 2026-02-13 | LEE SPENCER S | officer | Option exercise | 402 | 1,966 | Form 4 |
| 2026-02-13 | LEE SPENCER S | officer | Option exercise | 402 | 1,564 | Form 4 |
Source: SEC Form 4 filings. Each row links to its original filing.
Across 2012–2021, stocks where a CEO, C-suite officer, or director had recently made an open-market common-stock purchase ran about +28 bp per month above the universe average (n=34,268 stock-weeks). A historical tendency, not a prediction.
Congressional disclosures
No congressional trades disclosed for this company.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.