PairBook
HomeSPY › SPY vs UNCY

SPY vs UNCY: Correlation

SPDR S&P 500 ETF Trust (SPY) and Unicycive Therapeutics, Inc. (UNCY) show a weak relationship: their 3-year correlation of weekly returns is 0.23.

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

Correlation (3Y)
0.23
weak
Correlation (1Y)
0.18
last 12 months
Correlation (5Y)
-0.06
long-run
Ann. covariance
288.0
%² · weekly, annualized

How correlated are SPY and UNCY?

Across a 3-year window, the weekly returns of SPY and UNCY correlate at 0.23, weak. Little has changed lately, as the 1-year reading of 0.18 lands near the 3-year figure. Stretching to 5 years gives -0.06, with an annualized covariance of 288.0 %².

Within SPY's tracked universe of 4755 assets, UNCY comes in at #2990 by 3-year correlation. Over the last 12 months UNCY came out ahead by 8.2 percentage points (+20.6% against +28.8%). Risk is not evenly split, since UNCY carries 6.1 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.

SPY vs UNCY: side by side

SPY (SPDR S&P 500 ETF Trust)UNCY (Unicycive Therapeutics, Inc.)
1-year return+20.6%+28.8%
5-year return+82.4%-79.6%
Volatility (ann.)14.5%88.4%
Beta vs S&P 5001.001.38
Max drawdown (3Y)-18.8%-86.8%
Market cap$0.2B
P/E (trailing)
Dividend yield1.01%0.00%
Expense ratio0.09%
Assets under management$795.3B
Sector / categoryETF · US Large CapUS Listed
Higher yield: SPY 1.01% vs 0.00%Smaller drawdown: SPY -18.8% vs -86.8%Higher 5y return: SPY +82.4% vs -79.6%

SPY, State Street Investment Management's Large Blend fund, carries $795.3B under management, 504 holdings, a 0.09% expense ratio, a 1.01% trailing dividend yield.

-11%0%+89%2025-09-052026-08-27
Price paths over the last 12 months, both indexed to 100 at the start (weekly closes). SPY · UNCY

Year-by-year returns

YearSPYUNCY
2022-18.2%-73.8%
2023+26.2%+60.7%
2024+24.9%-8.5%
2025+17.7%-27.3%
2026+13.7%-4.7%

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

Are SPY and UNCY good diversifiers for each other?

A fair diversifier. At 0.23, enough of each asset's movement is its own that the pair has smoothed outcomes historically.

FAQ

What is the correlation between SPY and UNCY?

The SPY/UNCY correlation stands at 0.23 on a 3-year window (1 year: 0.18, 5 years: -0.06), computed from weekly returns as of 2026-08-27.

Is UNCY a good diversifier for SPY?

A fair diversifier. At 0.23, enough of each asset's movement is its own that the pair has smoothed outcomes historically.

What does a correlation of 0.23 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

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

SPY vs UNCY: 3-year weekly correlation 0.23SPY vs UNCY0.23

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

[![SPY vs UNCY correlation](https://www.pairbook.io/api/v1/badge/spy-vs-uncy.svg)](https://www.pairbook.io/pair/spy-vs-uncy/)

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

Related comparisons

Hubs: SPY correlations · UNCY correlations