PDFS vs TKC: Correlation
How closely do PDF Solutions, Inc. (PDFS) and Turkcell Iletisim Hizmetleri AS (TKC) trade together? Their weekly returns over three years give a correlation of 0.32, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are PDFS and TKC?
On 3 years of weekly data the PDFS/TKC correlation comes out at 0.32, moderate. Lately the two have moved closer together, with the 1-year correlation at 0.51 versus 0.32 over 3 years. The 5-year figure is 0.24, and annualized covariance runs at 497.8 %².
Out of 16 assets tracked against PDFS, TKC lands near the bottom at #13. Correlation aside, the last 12 months split them widely, with PDFS ahead by 146.2 points (+133.6% versus -12.6%).
How is this computed?
Pearson correlation on weekly returns: ρ(A,B) = cov(rA, rB) / (σA · σB), over windows of 52, 156 and 260 weeks. Covariance is annualized (×52) and expressed in %². Full definitions on the methodology page.
PDFS vs TKC: side by side
| PDFS (PDF Solutions, Inc.) | TKC (Turkcell Iletisim Hizmetleri AS) | |
|---|---|---|
| 1-year return | +133.6% | -12.6% |
| 5-year return | +105.9% | +30.6% |
| Volatility (ann.) | 47.4% | 32.9% |
| Beta vs S&P 500 | 1.55 | 0.45 |
| Max drawdown (3Y) | -58.5% | -28.5% |
| Market cap | $1.9B | $4.7B |
| P/E (trailing) | 177.5 | 12.6 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | PDFS | TKC |
|---|---|---|
| 2022 | -10.3% | +38.2% |
| 2023 | +12.7% | +2.5% |
| 2024 | -15.7% | +44.5% |
| 2025 | +5.4% | -14.3% |
| 2026 | +61.8% | -1.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are PDFS and TKC good diversifiers for each other?
Reasonably. At 0.32, PDFS and TKC keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between PDFS and TKC?
Using weekly returns as of 2026-08-27: 0.32 over 3 years, with 0.51 over the last year and 0.24 over 5 years.
Is TKC a good diversifier for PDFS?
Reasonably. At 0.32, PDFS and TKC keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.32 mean?
Correlation ranges from −1 to +1. Values near +1 mean two assets move together, near 0 that they move independently, and negative values that they tend to move in opposite directions. It measures co-movement, not performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/pdfs-vs-tkc.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/pdfs-vs-tkc/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: PDFS correlations · TKC correlations
