Y-Intercept (Hong Kong) Ltd PTCT — PTC THERAPEUTICS INC

Ownership history in Y-Intercept (Hong Kong) Ltd  ·  9 quarters on record

AI Ownership Summary

Y-Intercept (Hong Kong) Ltd reported PTC THERAPEUTICS INC (PTCT) in 9 quarterly 13F filings from 2024 Q1 through 2025 Q3. Peak portfolio weight reached 0.06% in 2024 Q1. The latest visible filing shows PTCT at 0.03% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings. Older history is available after unlock; the visible window still shows the most recent pattern.

What this PTCT ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was Y-Intercept (Hong Kong) Ltd's position in PTC THERAPEUTICS INC, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2025 Q3

PTCT was reported at 0.03% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.06% in 2024 Q1

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2024 Q1 to 2025 Q3

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

PTCT stock page Y-Intercept (Hong Kong) Ltd fund profile Y-Intercept (Hong Kong) Ltd full holdings
How Y-Intercept (Hong Kong) Ltd held PTCT — position size vs. price
% of Fund (quarterly)    PTCT price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 7 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2025 Q3 REDUCED 21.4% +26.5% ❌ 21,889 -5,943 -21.4% 0.03% $1.3M 2025-10-31 $68.31
2025 Q2 ADDED — — — 27,832 +22,851 +458.8% 0.03% $1.4M 2025-08-01 $52.13
2025 Q1 REDUCED 54.8% -4.2% ✅ 4,981 -6,043 -54.8% 0.02% $254K 2025-05-06 $36.19
2024 Q4 REDUCED 20.3% +12.9% ❌ 11,024 -2,805 -20.3% 0.03% $498K 2025-02-04 $49.38
2024 Q3 REDUCED 57.0% +23.4% ❌ 13,829 -18,312 -57.0% 0.03% $513K 2024-11-15 $39.23
2024 Q2 ADDED — — — 32,141 +5,185 +19.2% 0.05% $983K 2024-08-14 $31.77
2024 Q1 ADDED — — — 26,956 +19,217 +248.3% 0.06% $784K 2024-05-10 $32.25
2 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding PTCT

As of 2026 Q1 — sorted by position size

PSP Research LLC 0.29% JUNCTURE WEALTH STRATEGIES, LLC 3Y 7Y 0.12% Pictet Asset Management Holding SA 0.08% PINNACLE ASSOCIATES LTD 3Y 7Y 0.07% SG Americas Securities, LLC 3Y 7Y 0.06% Smallwood Wealth Investment Management, LLC 3Y 0.06% BI Asset Management Fondsmaeglerselskab A/S 3Y 0.06% Louisiana State Employees Retirement System 3Y 7Y 0.04% Inspire Investing, LLC 3Y 7Y 0.04% State of Alaska, Department of Revenue 3Y 7Y 0.03%

FAQ About Y-Intercept (Hong Kong) Ltd and PTCT

These are the practical questions this page is built to answer before you even open the full history table.

How long has Y-Intercept (Hong Kong) Ltd reported owning PTCT?

Y-Intercept (Hong Kong) Ltd reported PTCT across 7 quarterly 13F filings, from 2024 Q1 through 2025 Q3.

What was the largest reported PTCT position in Y-Intercept (Hong Kong) Ltd's portfolio?

The largest reported portfolio weight for PTCT was 0.06% in 2024 Q1.

What is the latest reported PTCT position on this page?

The most recent filing on this page is 2025 Q3, when Y-Intercept (Hong Kong) Ltd reported 21,889 shares, equal to 0.03% of portfolio, with an estimated market value of $1.3M.

What does the chart on this PTCT ownership page compare?

The chart compares Y-Intercept (Hong Kong) Ltd's quarterly PTCT portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

How well did Y-Intercept (Hong Kong) Ltd time their PTCT position?

Based on 13F filing dates vs. subsequent PTCT price moves, Y-Intercept (Hong Kong) Ltd correctly timed 3 out of 8 reported position changes (38%). The annualised alpha on PTCT relative to SPY over the holding period was -13.4%.

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