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o
OCC
occupancy agreement
occupation
occupational hazard
October Effect
odd lot
odd lot buy/sell ratio
odd-lot theory
OECD
OECD Leading Indicator - Euro-zone
OEM
odd lot
Having the quality of holding less than 100 shares of a stock, or less than 10 shares of a very thinly traded stock. Also known as broken lot or uneven lot. opposite of round lot.