WhichIndex

Which indexes is Old Second Bancorp Inc in?

Old Second Bancorp Inc is in 2 of the 57 indexes we track. Its largest weight is 0.04% in the Russell 2000, where it ranks #789 of 1963.

Ticker
OSBC (Nasdaq)
Country
United States
Sector
Financials
Size
Small cap (market cap $300 million–2 billion; exact figure in the ranking)
Data as of
15 Oct 2026

Member of 2 indexes

Old Second Bancorp Inc's index memberships
IndexWeight %RankIndex size
Russell 20000.047891963
Nasdaq Composite0.00 (est.)24123373

Source: each index's own source, listed on its page. How we source this. Weights are estimates where marked. This page is refreshed when a membership changes or a weight moves by more than 10%; each index page has the daily figures.

Old Second Bancorp Inc across every index we track

Lit tiles are the indexes Old Second Bancorp Inc belongs to; the shade is its weight there.

Fewermore

Neighbours by weight

The members ranked just above and just below Old Second Bancorp Inc in each index
IndexRanked aboveRanked below
Russell 2000Nuvation Bio Class A (0.04%)Orchid Island Capital Inc (0.04%)
Nasdaq CompositeOhmyhome Limited (0.00%)Olema Pharmaceuticals (0.00%)

Not in

Among the indexes we track for United States.