CHI Advisors LLC

CIK

1791468

Location

New York, NY

Portfolio Value

Small $237,912,061

Diversification

Diversified

Filing Date

Global Rank

#4,100 / 7,036 ▲ 1084 · as of Sep 2023

Top Industry

Biotechnology 100.0%

Period ended 3 years ago

Filed Nov 13, 2023 · 2y

15 quarters · since Mar 2020

Regulatory profile

From Form ADV, the SEC filer profile, 13D/13G type codes and N-CEN, never from the name.

Holder type

Unknown

Portfolio style

Measured from the filed 13F common-share book for Sep 30, 2023, never from the firm's own description.

Style

Concentrated

The top 10 positions are 82.7% of the book (60%+)

Turnover

Low turnover

27.5% over the last four quarters (under 30%)

Horizon

Horizon unknown

The value-weighted holding period is at least 10.0 quarters, but 1.5% of the book was already held when coverage starts

Closest benchmark: the Russell 2000 as of 2023-09-30, active share 99.7%; sector active share 75.3% against the combined 13F book's sector weights.

Over time 15 measured quarters

How the bands are measured

Style bands measure the filed 13F common-share book each closed quarter, tested in this order. Unknown: under $10,000,000 of valued equity or 5 stocks. Index-like (100+ stocks): active share of 20% or less against the closest benchmark, which is the S&P 500, S&P MidCap 400, S&P SmallCap 600, Russell 1000, Russell 2000, Nasdaq-100 or Dow Jones Industrial Average (weighted by an index-tracking fund's reported holdings or the index's constituents nearest the quarter end, over the names resolved to companies, and only when those are 90%+ of its weight) or every 13F filer's combined book, or index series holding 80%+ of the registered fund assets it advises (N-CEN) and equal to 50%+ of its book. Systematic-like: 500+ stocks, 100%+ annual turnover and a top 10 weight of 25% or less. Concentrated: a top 10 weight of 60%+ or 12 or fewer effective positions. Diversified active: none of these. Turnover is the smaller of buys and sells over average equity value, summed over four quarters: low under 30%, high 100%+. Horizon is the value-weighted number of quarters each position has been held: short under 4, long 12+.

Clone Performance

Build a hypothetical price-return history from this filer's public 13F holdings.

View clone backtest

Portfolio Concentration

24 tracked positions · as of Sep 30, 2023 · Δ vs Jun 30, 2023

Top Position

22.0%

−14.1 pts

Top 5

65.5%

−17.0 pts

Top 10

82.7%

−13.1 pts

HHI

1,102

Diversified−982

Portfolio Trend

15 quarters · across all stocks

Sector Breakdown

As of Sep 30, 2023

Sector	% Portfolio	Value	Positions
Healthcare	64.3%	$152,938,103	16
Unclassified	35.7%	$84,973,958	8

Last Quarter's Activity

Export CSV

Sep 30, 2023 vs Jun 30, 2023

Added To

Positions the filer increased

6 positions

Ticker	Company	Δ Shares	Shares	Value
—		+531,914	1,299,359	$5,132,468
—		+150,000	1,002,007	$3,927,867
RARE	Ultragenyx Pharmaceutical Inc.	+130,000	215,000	$7,664,750
—		+75,000	1,270,027	$5,334,112
IKNA	ImageneBio, Inc.	+58,894	2,180,934	$9,443,445
KROS	Keros Therapeutics, Inc.	+5,515	407,633	$12,995,340
No positions match the current search.

Trimmed

Positions the filer reduced

8 positions

Ticker	Company	Δ Shares	Shares	Value
DTIL	Precision Biosciences Inc	−996,928	606,629	$206,860
—		−400,816	2,262,990	$23,014,608
RLYB	Rallybio Corp	−152,040	390,734	$1,316,773
PLRX	Pliant Therapeutics, Inc.	−102,818	3,014,199	$52,266,210
IRON	Disc Medicine, Inc.	−100,139	25,000	$1,174,500
LABD	Direxion Daily S&P Biotech Bear 3X Shares	−100,000	225,000	$4,635,000
—		−32,060	2,966,674	$35,837,422
BDTX	Black Diamond Therapeutics, Inc.	−30,000	720,000	$2,066,400
No positions match the current search.

New Positions

Positions the filer opened this quarter

4 positions

Ticker	Company	Shares	Value
MLYS	Mineralys Therapeutics, Inc.	568,379	$5,405,284
—		92,888	$4,664,835
MLTX	MoonLake Immunotherapeutics	60,000	$3,420,000
SGMT	Sagimet Biosciences Inc.	348,842	$3,069,809
No positions match the current search.

Sold Out

Positions the filer fully exited

3 positions

Ticker	Company	Shares	Value
CRVS	Corvus Pharmaceuticals, Inc.	200,000	$458,000
—		2,782,756	$0
—		788,740	$0
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

24 tracked positions · $237,912,061 total · filing declares 28 positions · $252,306,335 · as of Sep 30, 2023

All sectors Healthcare

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	Held (qtrs)	Est. cost/share	% of Portfolio
PLRX	Pliant Therapeutics, Inc. CALL + SHARES Healthcare	Reduced	3,151,699	-95,618	$52,321,210	−7.6%	14	$22.44	21.99%
	CALL + SHARES	Added	3,016,674	+17,940	$35,994,922	—	14	unpriced	15.13%
CGEM	Cullinan Therapeutics, Inc. Healthcare	Held	3,414,189	0	$30,898,410	−15.9%	11	$31.33	12.99%
		Reduced	2,262,990	-400,816	$23,014,608	—	2	unpriced	9.67%
LRMR	Larimar Therapeutics, Inc. Healthcare	Held	3,414,468	0	$13,487,148	+26.2%	14	$6.03	5.67%
KROS	Keros Therapeutics, Inc. Healthcare	Added	407,633	+5,515	$12,995,340	−19.6%	14	$42.92	5.46%
IKNA	ImageneBio, Inc. Healthcare	Added	2,180,934	+58,894	$9,443,445	—	11	unpriced	3.97%
RARE	Ultragenyx Pharmaceutical Inc. Healthcare	Added	215,000	+130,000	$7,664,750	+95.5%	2	$42.29	3.22%
CMPX	Compass Therapeutics, Inc. Healthcare	Held	2,829,712	0	$5,574,532	−38.1%	8	$3.29	2.34%
MLYS	Mineralys Therapeutics, Inc. Healthcare	NEW	568,379	NEW	$5,405,284	NEW	1	$13.04	2.27%
		Added	1,270,027	+75,000	$5,334,112	—	13	unpriced	2.24%
		Added	1,299,359	+531,914	$5,132,468	+112.3%	3	$3.82	2.16%
		NEW	92,888	NEW	$4,664,835	NEW	1	unpriced	1.96%
LABD	Direxion Daily S&P Biotech Bear 3X Shares	Reduced	225,000	-100,000	$4,635,000	−0.8%	2	unpriced	1.95%
		Added	1,002,007	+150,000	$3,927,867	—	7	unpriced	1.65%
MLTX	MoonLake Immunotherapeutics Healthcare	NEW	60,000	NEW	$3,420,000	NEW	1	$55.21	1.44%
OVID	Ovid Therapeutics Inc. Healthcare	Held	864,822	0	$3,320,916	+17.1%	15+	before history	1.40%
SGMT	Sagimet Biosciences Inc. Healthcare	NEW	348,842	NEW	$3,069,809	NEW	1	$13.31	1.29%
		Held	1,055,882	0	$2,270,146	—	9	unpriced	0.95%
BDTX	Black Diamond Therapeutics, Inc. Healthcare	Reduced	720,000	-30,000	$2,066,400	−45.4%	2	$2.04	0.87%
RLYB	Rallybio Corp Healthcare	Reduced	390,734	-152,040	$1,316,773	−57.1%	5	$8.30	0.55%
IRON	Disc Medicine, Inc. Healthcare	Reduced	25,000	-100,139	$1,174,500	−78.9%	2	$35.48	0.49%
GRPH	LENZ Therapeutics, Inc. Healthcare	Held	230,938	0	$572,726	—	2	unpriced	0.24%
DTIL	Precision Biosciences Inc Healthcare	Reduced	606,629	-996,928	$206,860	−75.5%	15+	before history	0.09%

Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.