CISS vs. OPEN
CISS (C3is Inc.) and OPEN (Opendoor Technologies Inc.) are both stocks. CISS operates in Marine Shipping (Industrials), while OPEN operates in Real Estate - Services (Real Estate). Over the past year, CISS returned -99.56% vs 751.93% for OPEN. At a 0.07 correlation, their price movements are largely independent.
Performance
CISS vs. OPEN - Performance Comparison
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Returns By Period
In the year-to-date period, CISS achieves a -93.14% return, which is significantly lower than OPEN's -16.47% return.
CISS
- 1D
- 0.45%
- 1M
- -36.49%
- YTD
- -93.14%
- 6M
- -99.11%
- 1Y
- -99.56%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
OPEN
- 1D
- -9.98%
- 1M
- -5.07%
- YTD
- -16.47%
- 6M
- -29.83%
- 1Y
- 751.93%
- 3Y*
- 26.60%
- 5Y*
- -21.02%
- 10Y*
- —
CISS vs. OPEN - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | |
|---|---|---|---|---|
CISS C3is Inc. | -93.14% | -97.31% | -98.92% | -85.68% |
OPEN Opendoor Technologies Inc. | -16.47% | 276.52% | -64.29% | 41.32% |
Correlation
The correlation between CISS and OPEN is 0.06, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.06 |
Correlation (All Time) Calculated using the full available price history since Jun 23, 2023 | 0.07 |
Fundamentals
CISS:
$769.01K
OPEN:
$4.67B
CISS:
$3.08
OPEN:
-$1.74
CISS:
0.11
OPEN:
0.99
CISS:
0.01
OPEN:
4.90
CISS:
$37.66M
OPEN:
$3.94B
CISS:
$8.58M
OPEN:
$312.00M
CISS:
$12.89M
OPEN:
-$1.25B
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Return for Risk
CISS vs. OPEN — Risk / Return Rank
CISS
OPEN
CISS vs. OPEN - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for C3is Inc. (CISS) and Opendoor Technologies Inc. (OPEN). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
| CISS | OPEN | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -5.31 | ||
| Sortino ratioReturn per unit of downside risk | -7.01 | ||
| Omega ratioGain probability vs. loss probability | 0.59 | 1.52 | -0.92 |
| Calmar ratioReturn relative to maximum drawdown | -1.00 | 13.10 | -14.10 |
| Martin ratioReturn relative to average drawdown | -1.36 | 20.51 | -21.87 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| CISS | OPEN | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | -0.58 | 4.73 | -5.31 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | — | -0.19 | — |
Sharpe Ratio (All Time)Calculated using the full available price history | -0.69 | -0.11 | -0.58 |
Drawdowns
CISS vs. OPEN - Drawdown Comparison
The maximum CISS drawdown since its inception was -100.00%, roughly equal to the maximum OPEN drawdown of -98.57%. Use the drawdown chart below to compare losses from any high point for CISS and OPEN.
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Drawdown Indicators
| CISS | OPEN | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -100.00% | -98.57% | -1.43% |
Max Drawdown (1Y)Largest decline over 1 year | -99.63% | -57.96% | -41.67% |
Max Drawdown (3Y)Largest decline over 3 years | — | -90.28% | — |
Max Drawdown (5Y)Largest decline over 5 years | — | -97.93% | — |
Current DrawdownCurrent decline from peak | -100.00% | -85.97% | -14.03% |
Average DrawdownAverage peak-to-trough decline | -96.66% | -74.57% | -22.09% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 73.28% | 36.94% | +36.34% |
Volatility
CISS vs. OPEN - Volatility Comparison
C3is Inc. (CISS) has a higher volatility of 24.06% compared to Opendoor Technologies Inc. (OPEN) at 19.07%. This indicates that CISS's price experiences larger fluctuations and is considered to be riskier than OPEN based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| CISS | OPEN | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 24.06% | 19.07% | +4.99% |
Volatility (6M)Calculated over the trailing 6-month period | 200.58% | 52.34% | +148.24% |
Volatility (1Y)Calculated over the trailing 1-year period | 172.38% | 160.45% | +11.93% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 144.02% | 113.43% | +30.59% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 144.02% | 110.47% | +33.55% |
Dividends
CISS vs. OPEN - Dividend Comparison
Neither CISS nor OPEN has paid dividends to shareholders.
Financials
CISS vs. OPEN - Financials Comparison
This section allows you to compare key financial metrics between C3is Inc. and Opendoor Technologies Inc.. You can select fields from income statements, balance sheets, and cash flow statements to easily visualize and compare the financial health of both companies.
Total Revenue: Total amount of money received from sales and other business activities
CISS vs. OPEN - Profitability Comparison
CISS - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, C3is Inc. reported a gross profit of 6.19M and revenue of 11.58M. Therefore, the gross margin over that period was 53.5%.
OPEN - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Opendoor Technologies Inc. reported a gross profit of 72.00M and revenue of 720.00M. Therefore, the gross margin over that period was 10.0%.
CISS - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, C3is Inc. reported an operating income of 5.26M and revenue of 11.58M, resulting in an operating margin of 45.5%.
OPEN - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Opendoor Technologies Inc. reported an operating income of -159.00M and revenue of 720.00M, resulting in an operating margin of -22.1%.
CISS - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, C3is Inc. reported a net income of 3.20M and revenue of 11.58M, resulting in a net margin of 27.7%.
OPEN - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Opendoor Technologies Inc. reported a net income of -173.00M and revenue of 720.00M, resulting in a net margin of -24.0%.
Frequently Asked Questions
CISS and OPEN have a correlation of 0.06, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
CISS has higher volatility (24.06%) compared to OPEN (19.07%). In terms of maximum drawdown, CISS dropped -100.00% vs OPEN's -98.57%.
OPEN currently has the higher Sharpe Ratio (4.73 vs -0.58), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
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