OSBCOld Second Bancorp Inc

CSNasdaq (XNAS)·USD

Identity

Security key: 19738
Ticker: OSBC
Type: CS — Common Stock
Exchange: Nasdaq(XNAS)
Venue group: NASDAQ
Operating MIC: XNAS
Market: stocks
Locale: us
Currency: USD
Listed: 1993-11-16
Round lot: 100
Active: Yes
Last seen in a load: 2026-08-14 20:49
Vendor updated: 2026-08-13 06:09
Ticker root / suffix: OSBC

Detail

Enriched 2026-08-14 20:47

Market cap: $1,312,593,472.8
Shares outstanding (class): 50,875,716
Shares outstanding (weighted): 50,875,716
SIC: 6022 STATE COMMERCIAL BANKS
Employees: 1,062
Location: AURORA, IL
Homepage: https://www.oldsecond.com
Description: Old Second Bancorp Inc is a bank holding company. It provides consumer and commercial banking products such as demand, money market, savings, time deposit, and individual retirement as well as commercial, industrial, consumer, and real estate lending, including installment loans, student loans, agricultural loans, lines of credit and overdraft checking, safe deposit operations, trust services, wealth management services, and additional services tailored to the needs of individual customers, corporates, small-medium enterprises. The company has one operating segment, which is community banking. The company's revenue consists of interest, commission, payments, and other income.

Market cap and share counts drift.

Funds holding this security

105 funds · 106 positions · $144.86M reported value, as of 2026-03-31

All holders →

Fund	Ticker	Position value	% of fund	Balance	Match
VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS	VTI	$32.47M	0.00%	1,610,374 NS	FIGI
iShares Russell 2000 ETF iShares Trust	IWM	$24.96M	0.03%	1,238,058 NS	FIGI
VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS	VXF	$11.90M	0.01%	590,445 NS	FIGI
iShares Russell 2000 Value ETF iShares Trust	IWN	$8.79M	0.07%	436,035 NS	FIGI
State Street(R) SPDR(R) S&P(R) Regional Banking… SPDR SERIES TRUST	KRE	$8.50M	0.23%	421,597 NS	FIGI
John Hancock Financial Opportunities Fund —	—	$7.18M	1.02%	355,988 NS	FIGI
VANGUARD STRATEGIC SMALL-CAP EQUITY FUND VANGUARD HORIZON FUNDS	—	$6.22M	0.25%	308,319 NS	FIGI
JPMorgan Small Cap Value Fund JPMorgan Trust II	—	$4.33M	0.38%	214,811 NS	FIGI
AST Small-Cap Equity Portfolio Advanced Series Trust	—	$2.72M	0.15%	134,970 NS	FIGI
Omni Small-Cap Value Fund Bridgeway Funds, Inc.	—	$2.67M	0.22%	132,603 NS	FIGI
iShares Micro-Cap ETF iShares Trust	IWC	$2.57M	0.21%	127,375 NS	FIGI
JPMorgan Small Cap Blend Fund JPMorgan Trust I	—	$2.56M	0.18%	126,764 NS	FIGI
RMB Mendon Financial Services Fund RMB Investors Trust	—	$2.02M	0.89%	100,000 NS	FIGI
iShares Core S&P Total U.S. Stock Market ETF iShares Trust	ITOT	$1.64M	0.00%	81,577 NS	FIGI
Master Small Cap Index Series Quantitative Master Series LLC	—	$1.63M	0.03%	80,894 NS	FIGI

How positions resolve to the securities master. FIGI_COMPOSITE is exact identifier equality — both sides got the FIGI from Bloomberg. TICKER is a narrow fallback used only where the master row carries no FIGI at all (2,389 rows do not, disproportionately Irish-domiciled US listings like LIN and ACN). Roughly 22% of all positions resolve to the master.

Funds holding this security

Identifiers

master.security_identifier

TICKEROSBC
FIGI_COMPOSITEBBG000BLFSZ4
FIGI_SHARE_CLASSBBG001S7HMZ6
CIK0000357173
ISINUS6802771005
Resolved through OpenFIGI from a holdings ISIN, not supplied by the securities vendor.

Identifiers

Classification

classification.v_security_classification

Asset class: Equity
Sector: Financials
Industry: Banking
Source: LLMunreviewed
Self-reported confidence: 0.95
Model: deepseek
Rationale: Old Second Bancorp is a commercial bank holding company, so its common stock is classified as equity in the banking industry.

Classifications are unreviewed model output. All 5,771 assignments carry source = LLM and is_reviewed = false. Confidence is the model’s own estimate and is not calibrated — it clustered at 0.90–0.98 across the whole first pass, including rows that later proved wrong. Use it to order a review queue, not as a probability. Two share classes of one issuer can disagree.

Classification

Fund data

Not linked to a fund series.

Either this is not a fund, or it is one the SEC share-class snapshot cannot reach — commodity trusts and notes have no series ID at all.