The RBB Fund, Inc. F/m Ultrashort Tax-Free Municipal ETF (ZMUN) — Stock Correlations & Overview

Over the past year, ZMUN has moved most closely with TBIL, XBIL, OBIL. Explore the stocks most correlated and inversely correlated with ZMUN below, along with its price, financials, and company profile.

Stocks correlated with ZMUN

Correlation of daily returns. Higher positive values move with ZMUN; negative values move opposite it. Informational only, not investment advice.

Most correlated with ZMUN

SymbolCompanyCorrelation
TBILThe RBB Fund, Inc. F/m US Treasury 3 Month Bill Fund0.71
XBILUS Treasury 6 Month Bill ETF0.70
OBILUS Treasury 12 Month Bill ETF0.69
OPERClearShares Ultra-Short Maturity ETF0.59
BUXXStrive Enhanced Income Short Maturity ETF0.58

Most inversely correlated with ZMUN

SymbolCompanyCorrelation
MASK3 E Network Technology Group Ltd Class A Ordinary Shares-0.23
KNSAKiniksa Pharmaceuticals International, plc Class A Ordinary SharesPHARMACEUTICAL PREPARATIONS-0.23
MMKTTexas Capital Government Money Market ETF-0.21
RSVRReservoir Media, Inc. Common StockSERVICES-AMUSEMENT & RECREATION SERVICES-0.21
TDOCTeladoc Health, Inc.SERVICES-OFFICES & CLINICS OF DOCTORS OF MEDICINE-0.20

Frequently asked questions about ZMUN correlations

Which stocks are most correlated with ZMUN?
Based on one year of daily returns, the stocks most correlated with The RBB Fund, Inc. F/m Ultrashort Tax-Free Municipal ETF (ZMUN) are TBIL (0.71), XBIL (0.70) and OBIL (0.69). A correlation near 1.00 means the two stocks' daily moves have tracked each other closely over the period.
Which stocks are inversely correlated with ZMUN?
Over the past year, the stocks most inversely correlated with The RBB Fund, Inc. F/m Ultrashort Tax-Free Municipal ETF (ZMUN) are MASK (-0.23), KNSA (-0.23) and MMKT (-0.21). A negative correlation means the two stocks have tended to move in opposite directions.
What does a correlation of 0.8 mean for a stock?
Correlation measures how closely two stocks' daily returns move together, on a scale from -1 to 1. At 0.8, the two stocks have moved in the same direction on most days — though not by identical amounts. A value near 0 means their moves have been unrelated, and a negative value means they have tended to move in opposite directions. Correlation reflects past behavior and can change over time.
How are these ZMUN correlations calculated?
We compute the correlation of daily returns between ZMUN and roughly 9,000 other US-listed stocks and ETFs over the trailing one-year window, then rank the strongest positive and negative relationships. The data is refreshed monthly. It is informational and educational only — not investment advice.
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