CMCSA vs PRKS: Which Is the Better Buy in 2026?

Same yardstick, side by side (as of August 2026). Valuation lined up like this is most meaningful for two names in the same corner of the market, which these are. Figures are approximate; verify before investing.

Reading it: CMCSA is the cheaper of the two on forward earnings, but cheaper is not the same as better. Pair the valuation with growth (how far the forward P/E sits below the trailing P/E) and risk (beta) before you decide.

The metrics above tell you which is the marginally better business. The bigger risk for most people is not picking the slightly worse stock, it is over-concentrating. CMCSA and PRKS share themes, so owning both, or adding either to what you already hold, can quietly push a large share of your portfolio into one bet.

This is the part a generic comparison page cannot answer, because it depends on what you own. Connect your brokerage and Walnut shows your real, combined CMCSA and PRKS exposure, flags overlap with your existing positions, and tells you if adding one would tip you past a concentration you are comfortable with, read-only by default, with your login staying at your broker. Walnut is not an investment adviser.

Comcast is a global media and technology company built on three main pillars. Its Connectivity and Platforms business, anchored by Xfinity, is one of the largest US broadband and cable providers, selling high-speed internet, video, mobile (Xfinity Mobile), and home services to tens of millions of households, plus business connectivity. Its Content and Experiences business includes NBCUniversal, which owns the NBC broadcast network, cable networks (USA, Bravo, MSNBC, CNBC), the Peacock streaming service, Universal Pictures film studio, and Universal theme parks worldwide. Comcast also owns Sky, a major European media and broadband operator. The company makes money primarily from recurring broadband and connectivity subscriptions, which are its most profitable and stable revenue, supplemented by advertising, content licensing, box-office and streaming revenue, and theme-park admissions. Comcast is headquartered in Philadelphia and generates substantial free cash flow that funds dividends and buybacks.

Full CMCSA guide

United Parks & Resorts Inc. (NYSE: PRKS) is the Orlando-based operator most people still know as SeaWorld. It changed its legal name in February 2024 and kept the ticker. Seven brands span 13 parks in seven United States markets, plus a licensed SeaWorld in Abu Dhabi: SeaWorld, Busch Gardens, Aquatica, Discovery Cove, Sesame Place, Water Country USA and Adventure Island, concentrated in Florida, Virginia, Texas, California and Pennsylvania. Revenue splits almost evenly between getting people through the gate and what they spend once inside. In the first half of 2026 admissions produced about $391.6 million and food, merchandise and other in-park revenue about $370.0 million. The company also runs one of the largest marine animal rescue operations in the world, which is central to its brand and to the regulatory and reputational scrutiny it attracts.

Full PRKS guide

Both fit overlapping themes, but they are not interchangeable. The useful comparison is which set of drivers and risks you want exposure to.

• CMCSA drivers: Broadband cash engine; Wireless and convergence.
• PRKS drivers: In-park spending offsetting soft attendance; The buyback is the capital return.

A faster-growing, richer-valued name usually swings harder, so it suits a longer horizon and a higher tolerance for volatility; a steadier, more cash-generative business suits a more conservative or income-minded investor. The honest test is which set of risks you could hold through a drawdown: Comcast's core video business is in secular decline as cord-cutting erodes traditional cable-TV subscribers, and broadband subscriber growth has stalled or turned negative under heavy competition from fiber overbuilders (AT and T, others) and fixed-wireless from T-Mobile and Verizon. For PRKS, attendance is the number that has not cooperated, and the declines have now run through several quarters on a mix of weaker international visitation, weather and calendar shifts, which are not all fixable by management.

Growth-minded investors who believe the theme has years to run tend to accept the richer multiple for more upside; value-minded investors lean toward the cheaper forward earnings and steadier profile. Pick CMCSA if you believe its drivers more; PRKS if you believe its. Many investors hold both, but since they share themes, that is a concentrated bet, not diversification. Decide deliberately and check overlap. For the full detail, see the CMCSA and PRKS guides.

CMCSA. Comcast trades at a low earnings multiple relative to the market, reflecting investor concern about cord-cutting, slowing broadband growth, and media disruption. The bull case rests on a high-margin broadband cash engine, growing wireless and theme parks, a solid dividend yield, and aggressive buybacks. The cheap valuation is the market pricing structural decline against still-robust cash generation.

PRKS. The trailing price-to-earnings ratio of roughly 18 is distorted by the capital structure, because about $130 million of annual interest expense sits between EBITDA and net income while the buyback keeps cutting the denominator. Enterprise value to trailing adjusted EBITDA of roughly 7.4 times is the more informative frame, and it is the one the debt agreements effectively use: measured against last-twelve-month covenant adjusted EBITDA of about $636.9 million, the multiple is closer to 6.8 times and net leverage closer to 3.6 times. Book value is negative (stockholders' deficit of about $617 million, largely a product of years of buybacks), so price-to-book carries no signal here. Shares traded near $45 in late August 2026, inside a 52-week range of $28.77 to $56.95.

Headline figures (approximate, early 2026): CMCSA shows revenue (ttm) ~$120 billion, operating margin ~18-20%, net income (ttm) ~$15 billion, dividend yield ~3-3.5%; PRKS shows revenue (ttm) ~$1.65 billion, adjusted ebitda (ttm) ~$585 million, net income / diluted eps (ttm) ~$134 million / ~$2.51, market cap / enterprise value ~$2.0 billion / ~$4.3 billion.

CMCSA and PRKS are related but distinct: same themes, different businesses and risks. Neither wins in the abstract; the right pick is whichever thesis you actually believe, sized so you are not over-concentrated in one theme. Walnut can show your combined CMCSA and PRKS exposure against your real portfolio. It is not an investment adviser.