Castellum (CTM) vs RTB Digital (RTB)
Head-to-head comparison of performance, valuation, growth, profitability and dividends. Prices delayed 15 minutes; data as of Oct 8, 2026.
Summary
RTB Digital (RTB) has outperformed Castellum (CTM) over the past year, losing 36.6% versus a loss of 42.1%. RTB Digital is the larger company by market cap ($120.9 million vs $58.0 million), about 2.1 times the size.
Summary generated from market data by MetaCap's automated system. Methodology
Relative performance
Percent change in share price from the first common trading day shown; excludes dividends.
Head-to-head
| Metric | CTM | RTB |
|---|---|---|
| Share price | $0.612 | $8.36 |
| Market cap | $58.01M | $120.92M |
| 1-day change | -2.98% | -0.83% |
| YTD return | -30.14% | +50.54% |
| 1-year return | -42.13% | -36.62% |
| 5-year return | — | -99.68% |
| Forward P/E | 61.20 | — |
| EPS (TTM) | $-0.04 | $-7.07 |
| Dividend yield | 0.00% | 0.00% |
| Annual dividend | $0.00 | $0.00 |
| 52-week high | $1.36 | $20.75 |
| 52-week low | $0.48 | $3.25 |
| Distance from 52-week high | -55.00% | -59.71% |
| Average volume | 855.82K | 110.45K |
| Shares outstanding | 94.78M | 14.46M |
| Sector | Consumer Discretionary | Consumer Discretionary |
| Industry | Professional Services | Professional Services |
Highlighted cells mark the higher value for growth, returns, margins and yield, and the lower value for P/E ratios. Highlighting is a mechanical comparison, not a recommendation.
Key differences
- RTB Digital is about 2.1 times larger than Castellum by market value ($120.92M vs $58.01M).
About RTB Digital
RTB stock →RTB Digital, Inc., doing business as Roundtable, owns and operates a Web3 digital media Software as a Service technology platform that enables media brands and journalists to distribute, publish, monetize, and engage with their communities within brand, data, and voice. It provides sports, crypto, and financial news coverage with distribution partners.
Consumer Discretionary · Professional Services
CTM vs RTB FAQ
Which is bigger, Castellum or RTB Digital?
RTB Digital (RTB) is larger, with a market capitalization of $120.92M compared with $58.01M for Castellum (CTM).
Which stock has performed better over the past year, CTM or RTB?
RTB returned -36.62% over the past 12 months, compared with -42.13% for CTM (price return, excluding dividends). Past performance does not predict future results.
Are Castellum and RTB Digital in the same industry?
Yes. Both are classified in the Professional Services industry within the Consumer Discretionary sector.