Ticker · CUSIP 449172105
Holders (tracked)
11
Combined shares
1,492,920
Combined value
$44.36M
Last close
$38.26
Quarter
2025Q4
Price · 1Y$38.26+1.51 (+4.10%)H $42.45 · L $25.92 · Avg Vol 91K
Tracked holders · last 8 quarters
+1 vs previous quarter over the last 8.
Price is +28.8% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
17 events
- Ken Griffin (Citadel Advisors) added2026-02-17+420 shares · 2025Q4Position
- D.E. Shaw & Co. added2026-02-17+5,881 shares · 2025Q4Position
- Two Sigma Investments trimmed2026-02-17−29,520 shares · 2025Q4Position
- Izzy Englander (Millennium Mgmt) added2026-02-17+3,401 shares · 2025Q4Position
- T. Rowe Price added2026-02-17+3,525 shares · 2025Q4Position
- AQR Capital Management trimmed2026-02-17−1,109 shares · 2025Q4Position
- Renaissance Technologies trimmed2026-02-12−2,400 shares · 2025Q4Position
- Ken Fisher (Fisher Asset Mgmt) trimmed2026-02-09−2,168 shares · 2025Q4Position
- Mario Gabelli (GAMCO) trimmed2026-02-05−11,158 shares · 2025Q4Position
- −36,987 shares · 2025Q3Position
- D.E. Shaw & Co. added2025-11-14+12,220 shares · 2025Q3Position
- T. Rowe Price added2025-11-14+254 shares · 2025Q3Position
- AQR Capital Management added2025-11-14+13,421 shares · 2025Q3Position
- Izzy Englander (Millennium Mgmt) added2025-11-14+117,415 shares · 2025Q3Position
- Two Sigma Investments added2025-11-14+16,465 shares · 2025Q3Position
- Renaissance Technologies added2025-11-13+8,200 shares · 2025Q3Position
- Mario Gabelli (GAMCO) trimmed2025-11-12−15,083 shares · 2025Q3Position
Insider activity
No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of HY…
Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.
| Investor | First in | Cost basis | Return | Position value today |
|---|---|---|---|---|
| Ken Griffin (Citadel Advisors) | 2016Q2 | $30.87 | +23.9% | $868K |
| Ken Griffin (Citadel Advisors) | 2016Q2 | $30.87 | +23.9% | $868K |
| Ken Griffin (Citadel Advisors) | 2016Q2 | $30.87 | +23.9% | $868K |
| Izzy Englander (Millennium Mgmt) | 2016Q1 | $42.48 | -9.9% | $8.6M |
| AQR Capital Management | 2016Q1 | $42.54 | -10.1% | $3.3M |
| D.E. Shaw & Co. | 2017Q2 | $42.80 | -10.6% | $6.7M |
| Two Sigma Investments | 2016Q3 | $43.38 | -11.8% | $1.1M |
| Ken Fisher (Fisher Asset Mgmt) | 2016Q1 | $45.28 | -15.5% | $1.3M |
| Mario Gabelli (GAMCO) | 2019Q3 | $47.74 | -19.9% | $31.9M |
| Renaissance Technologies | 2016Q1 | $49.86 | -23.3% | $1.5M |
| T. Rowe Price | 2016Q1 | $50.61 | -24.4% | $492K |
Who moved on this name in 2025Q4
Position changes reported for the latest quarter, grouped by direction.
New positions0
—
Added to4
- D.E. Shaw & Co.+5,881$175K
- Izzy Englander (Millennium Mgmt)+3,401$101K
- Ken Griffin (Citadel Advisors)+420$12K
- T. Rowe Price+3,525$105
Trimmed5
- Two Sigma Investments−29,520$877K
- Mario Gabelli (GAMCO)−11,158$332K
- Renaissance Technologies−2,400$71K
- Ken Fisher (Fisher Asset Mgmt)−2,168$64K
- AQR Capital Management−1,109$33K
Exited0
—
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 8 | $67.9M |
| 2022Q2 | 9 | $69.6M |
| 2022Q3 | 10 | $49.4M |
| 2022Q4 | 13 | $57.4M |
| 2023Q1 | 13 | $111.6M |
| 2023Q2 | 13 | $115.6M |
| 2023Q3 | 14 | $101.8M |
| 2023Q4 | 13 | $139.3M |
| 2024Q1 | 11 | $135.2M |
| 2024Q2 | 12 | $148.0M |
| 2024Q3 | 12 | $77.0M |
| 2024Q4 | 12 | $65.8M |
| 2025Q1 | 13 | $57.3M |
| 2025Q2 | 10 | $55.0M |
| 2025Q3 | 10 | $55.2M |
| 2025Q4 | 11 | $44.4M |
Who owns HY
11 super-investors · 2025Q4
Tracked stake
1.49M
shares
Combined value
$44M
% of shares outstanding
—
shares-out unknown
Quarter action mix
Added6Trim5
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Mario Gabelli GAMCO | 834.4K | $25M |
| 2 | Izzy Englander Millennium Mgmt | 224.3K | $7M |
| 3 | D.E. Shaw & Co. | 175.7K | $5M |
| 4 | AQR Capital Management | 86.5K | $3M |
| 5 | Renaissance Technologies | 39.9K | $1M |
| 6 | Ken Fisher Fisher Asset Mgmt | 33.0K | $980K |
| 7 | Two Sigma Investments | 28.4K | $843K |
| 8 | Ken Griffin Citadel Advisors | 25.8K | $767K |
| 9 | Ken Griffin Citadel Advisors | 22.7K | $674K |
| 10 | T. Rowe Price | 12.9K | $383K |
| 11 | Ken Griffin Citadel Advisors | 9.5K | $282K |
Recent moves
20 transactions
- +5,881 · 2025Q4
- −29,520 · 2025Q4
- +3,525 · 2025Q4
- +3,401 · 2025Q4
- +420 · 2025Q4
- −1,109 · 2025Q4
- −2,400 · 2025Q4
- −2,168 · 2025Q4
- −11,158 · 2025Q4
- −36,987 · 2025Q3
- +16,465 · 2025Q3
- +254 · 2025Q3
- +117,415 · 2025Q3
- +13,421 · 2025Q3
- +12,220 · 2025Q3
- +8,200 · 2025Q3
- −15,083 · 2025Q3
- −5,100 · 2025Q2
- +716 · 2025Q2
- −16,125 · 2025Q2
Embed this chart
Paste this iframe anywhere to embed the live HY chart.
<iframe src="https://openstocks.me/embed/stock/HY" width="100%" height="480" frameborder="0" loading="lazy" title="HY chart by OpenStocks" style="border:0;border-radius:12px;background:transparent"></iframe>Preview: https://openstocks.me/embed/stock/HY