PairBook
HomeFNGD › FNGD vs PRLB

FNGD vs PRLB: Correlation

MicroSectors FANG Index -3X Inverse Leveraged ETNs due (FNGD) and Proto Labs, Inc. (PRLB) show a negative relationship: their 3-year correlation of weekly returns is -0.31.

Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology

Correlation (3Y)
-0.31
negative
Correlation (1Y)
-0.17
last 12 months
Correlation (5Y)
-0.35
long-run
Ann. covariance
-1181.7
%² · weekly, annualized

How correlated are FNGD and PRLB?

Across a 3-year window, the weekly returns of FNGD and PRLB correlate at -0.31, negative, meaning they tend to move in opposite directions. The link has tightened recently: the 1-year correlation (-0.17) runs above the 3-year figure (-0.31). Stretching to 5 years gives -0.35, with an annualized covariance of -1181.7 %².

Within FNGD's tracked universe of 1743 assets, PRLB comes in at #914 by 3-year correlation. Correlation aside, the last 12 months split them widely, with PRLB ahead by 113.3 points (-55.7% versus +57.6%). Risk is not evenly split, since FNGD carries 1.5 times the volatility of the other side.

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.

FNGD vs PRLB: side by side

FNGD (MicroSectors FANG Index -3X Inverse Leveraged ETNs due)PRLB (Proto Labs, Inc.)
1-year return-55.7%+57.6%
5-year return-99.4%+10.1%
Volatility (ann.)75.7%50.3%
Beta vs S&P 500-4.541.52
Max drawdown (3Y)-97.6%-33.6%
Market cap$1.9B
P/E (trailing)20.662.6
Dividend yield0.00%0.00%
Sector / categoryUS ListedUS Listed
Lower P/E: FNGD 20.6 vs 62.6Smaller drawdown: PRLB -33.6% vs -97.6%Higher 5y return: PRLB +10.1% vs -99.4%
-52%0%+84%2025-09-052026-08-27
Price paths over the last 12 months, both indexed to 100 at the start (weekly closes). FNGD · PRLB

Year-by-year returns

YearFNGDPRLB
2022+52.2%-50.3%
2023-90.1%+52.6%
2024-76.6%+0.3%
2025-61.4%+29.4%
2026-49.5%+58.3%

Calendar-year price returns; the current year is year-to-date as of the data date above.

Are FNGD and PRLB good diversifiers for each other?

Yes: at -0.31, the two have gone their own ways historically, which is what genuine diversification looks like.

FAQ

What is the correlation between FNGD and PRLB?

The FNGD/PRLB correlation stands at -0.31 on a 3-year window (1 year: -0.17, 5 years: -0.35), computed from weekly returns as of 2026-08-27.

Is PRLB a good diversifier for FNGD?

Yes: at -0.31, the two have gone their own ways historically, which is what genuine diversification looks like.

What does a correlation of -0.31 mean?

A reading of -0.31 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.

Use this data

JSON API · no key required
$ curl https://www.pairbook.io/api/v1/pairs/fngd-vs-prlb.json

FNGD vs PRLB: 3-year weekly correlation -0.31FNGD vs PRLB-0.31

Embed this badge (it refreshes with the data), with attribution:

[![FNGD vs PRLB correlation](https://www.pairbook.io/api/v1/badge/fngd-vs-prlb.svg)](https://www.pairbook.io/pair/fngd-vs-prlb/)

Free with attribution; caching and terms are described in the API documentation.

Related comparisons

Hubs: FNGD correlations · PRLB correlations