BlackLine Inc

BLNASDAQ · USD
28.50USD+0.34 (+1.21%)
795

BlackLine Inc (BL) Historical Volatility

BL 30-day historical volatility is 64%. This ranks in the 80th percentile of readings over the past year.

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Tracking BL historical volatility helps you see how much BlackLine Inc's stock price has actually moved over past periods, giving you a baseline to judge whether current option premiums are fair, cheap, or expensive. While implied volatility tells you what the market expects, BlackLine Inc's HV tells you what really happened. Use our scanner to monitor BL 30 day historical volatility alongside longer lookback windows and spot the moments when realized and implied diverge.

Historical volatility is the annualized standard deviation of an underlying's past returns, typically measured over rolling windows like 10, 20, 30, or 60 days. The BL 30 day historical volatility is one of the most widely watched readings because it balances responsiveness with stability. Comparing BlackLine Inc's HV to its implied volatility reveals the volatility risk premium — when IV sits well above HV, option sellers tend to have an edge; when HV runs hot relative to IV, buyers may be underpaying for movement.

BlackLine, Inc. provides cloud-based solutions to automate and streamline accounting and finance operations worldwide. It offers financial close management solutions, such as account reconciliations that provides a centralized workspace for users to collaborate on account reconciliations; transaction matching that analyzes and reconciles high volumes of individual transactions; and task management to create and manage processes and task lists. The company's financial close management solutions also include journal entry that allows users to generate, review, and post manual journal entries; variance analysis that monitors and identifies anomalous fluctuations in balance sheet and income statement account balances; consolidation integrity manager that manages the automated system-to-system tie-out process that occurs during the consolidation phase of the financial close; and compliance, an integrated solution that facilitates compliance-related initiatives, consolidates project management, and provides visibility over control self-assessments and testing.

In addition, it offers accounts receivable automation solutions, which include cash application, credit and risk management, collections management, disputes and deductions, team and task management, and AR intelligence solutions. Further, the company provides intercompany workflow that stores permissions by entity and transaction type thereby ensuring both the initiator and the approver of the intercompany transaction are authorized to conduct business; intercompany processing, which records an organization's intercompany transactions; and netting and settlement that generates a real-time settlement matrix, which shows the balance of transactions. The company sells its solutions primarily through direct sales force to multinational corporations, large domestic enterprises, and mid-market companies across various industries. BlackLine, Inc. was incorporated in 2001 and is headquartered in Woodland Hills, California.

Sizing a long premium trade, modeling a covered call, or hunting volatility arbitrage all come back to one question: how much has the stock actually moved? Our scanner puts BlackLine Inc's historical volatility side-by-side with implied readings across every lookback window, so you can see exactly where BL HV is running hot, cold, or in line. Make the BL 30 day historical volatility — and every other window — work for your edge instead of against it.

IV vs HV
Implied Volatility (IV) vs Historical Volatility (HV) over the past month.

As of September 16, 2026

IV - HV Difference
Difference between IV and HV over time. Positive values indicate IV > HV.

As of September 16, 2026

See how volatility has moved over time

Track BL historical volatility, spot where IV and realized volatility diverge, and find options that are priced in your favor right now.

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