PRTA
Price
$5.41
Change
+$0.35 (+6.92%)
Updated
Jun 6 closing price
Capitalization
291.2M
60 days until earnings call
ZG
Price
$69.41
Change
+$0.52 (+0.75%)
Updated
Jun 6 closing price
Capitalization
11.21B
53 days until earnings call
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PRTA vs ZG

Header iconPRTA vs ZG Comparison
Open Charts PRTA vs ZGBanner chart's image
Prothena
Price$5.41
Change+$0.35 (+6.92%)
Volume$1.25M
Capitalization291.2M
Zillow Group
Price$69.41
Change+$0.52 (+0.75%)
Volume$321.42K
Capitalization11.21B
PRTA vs ZG Comparison Chart
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PRTA
Daily Signalchanged days ago
Gain/Loss if bought
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ZG
Daily Signalchanged days ago
Gain/Loss if bought
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PRTA vs. ZG commentary
Jun 09, 2025

To compare these two companies we present long-term analysis, their fundamental ratings and make comparative short-term technical analysis which are presented below. The conclusion is PRTA is a StrongBuy and ZG is a StrongBuy.

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COMPARISON
Comparison
Jun 09, 2025
Stock price -- (PRTA: $5.41 vs. ZG: $69.41)
Brand notoriety: PRTA and ZG are both not notable
PRTA represents the Biotechnology, while ZG is part of the Internet Software/Services industry
Current volume relative to the 65-day Moving Average: PRTA: 83% vs. ZG: 62%
Market capitalization -- PRTA: $291.2M vs. ZG: $11.21B
PRTA [@Biotechnology] is valued at $291.2M. ZG’s [@Internet Software/Services] market capitalization is $11.21B. The market cap for tickers in the [@Biotechnology] industry ranges from $334.5B to $0. The market cap for tickers in the [@Internet Software/Services] industry ranges from $1.94T to $0. The average market capitalization across the [@Biotechnology] industry is $2.35B. The average market capitalization across the [@Internet Software/Services] industry is $68.52B.

Long-Term Analysis

It is best to consider a long-term outlook for a ticker by using Fundamental Analysis (FA) ratings. The rating of 1 to 100, where 1 is best and 100 is worst, is divided into thirds. The first third (a green rating of 1-33) indicates that the ticker is undervalued; the second third (a grey number between 34 and 66) means that the ticker is valued fairly; and the last third (red number of 67 to 100) reflects that the ticker is undervalued. We use an FA Score to show how many ratings show the ticker to be undervalued (green) or overvalued (red).

PRTA’s FA Score shows that 0 FA rating(s) are green whileZG’s FA Score has 0 green FA rating(s).

  • PRTA’s FA Score: 0 green, 5 red.
  • ZG’s FA Score: 0 green, 5 red.
According to our system of comparison, ZG is a better buy in the long-term than PRTA.

Short-Term Analysis

It is best to consider a short-term outlook for a ticker by using Technical Analysis (TA) indicators. We use Odds of Success as the percentage of outcomes which confirm successful trade signals in the past.

If the Odds of Success (the likelihood of the continuation of a trend) for each indicator are greater than 50%, then the generated signal is confirmed. A green percentage from 90% to 51% indicates that the ticker is in a bullish trend. A red percentage from 90% - 51% indicates that the ticker is in a bearish trend. All grey percentages are below 50% and are considered not to confirm the trend signal.

PRTA’s TA Score shows that 5 TA indicator(s) are bullish while ZG’s TA Score has 7 bullish TA indicator(s).

  • PRTA’s TA Score: 5 bullish, 2 bearish.
  • ZG’s TA Score: 7 bullish, 3 bearish.
According to our system of comparison, ZG is a better buy in the short-term than PRTA.

Price Growth

PRTA (@Biotechnology) experienced а +17.86% price change this week, while ZG (@Internet Software/Services) price change was +4.90% for the same time period.

The average weekly price growth across all stocks in the @Biotechnology industry was +9.04%. For the same industry, the average monthly price growth was +14.90%, and the average quarterly price growth was +1.90%.

The average weekly price growth across all stocks in the @Internet Software/Services industry was +2.42%. For the same industry, the average monthly price growth was +6.63%, and the average quarterly price growth was +9.54%.

Reported Earning Dates

PRTA is expected to report earnings on Aug 07, 2025.

ZG is expected to report earnings on Jul 31, 2025.

Industries' Descriptions

@Biotechnology (+9.04% weekly)

Biotechnology involves genetic or protein engineering to produce medicines/therapies for treating and preventing ailments. The industry also provides crucial ingredients for diagnostics. This multi-billion-dollar industry is heavily focused on research and development, as companies attempt to continually come up with cutting-edge solutions for health. New discoveries for the treatment of diseases provide opportunities for growth for a company in this industry. Discoveries, however, must pass the regulatory approval from the U.S. Food and Drug Administration (FDA) before they can make it to markets. Amgen Inc., Gilead Sciences, Inc. and Celgene Corporation are examples of companies in this industry.

@Internet Software/Services (+2.42% weekly)

Companies in this industry typically license software on a subscription basis and it is centrally hosted. Such products usually go by the names web-based software, on-demand software and hosted software. Cloud computing has emerged as a major force in this space, making it possible to save files to a remote database (without requiring them to be saved on local storage device); as long as a device has access to the web, it can access the data and the software programs to run it. This has in many cases facilitated cost efficiency, speed and security of data for businesses and consumers. Alphabet Inc., Facebook, Inc. and Yahoo! Inc. are some well-known names in the internet software/services industry.

SUMMARIES
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FUNDAMENTALS
Fundamentals
ZG($11.2B) has a higher market cap than PRTA($291M). ZG YTD gains are higher at: -2.032 vs. PRTA (-60.939). ZG has higher annual earnings (EBITDA): 104M vs. PRTA (-137.71M). ZG has more cash in the bank: 2.81B vs. PRTA (418M). PRTA has less debt than ZG: PRTA (10.2M) vs ZG (1.83B). ZG has higher revenues than PRTA: ZG (1.95B) vs PRTA (138M).
PRTAZGPRTA / ZG
Capitalization291M11.2B3%
EBITDA-137.71M104M-132%
Gain YTD-60.939-2.0322,998%
P/E RatioN/A128.21-
Revenue138M1.95B7%
Total Cash418M2.81B15%
Total Debt10.2M1.83B1%
FUNDAMENTALS RATINGS
PRTA vs ZG: Fundamental Ratings
PRTA
ZG
OUTLOOK RATING
1..100
623
VALUATION
overvalued / fair valued / undervalued
1..100
56
Fair valued
79
Overvalued
PROFIT vs RISK RATING
1..100
10086
SMR RATING
1..100
9090
PRICE GROWTH RATING
1..100
9648
P/E GROWTH RATING
1..100
94100
SEASONALITY SCORE
1..100
4539

Tickeron ratings are formulated such that a rating of 1 designates the most successful stocks in a given industry, while a rating of 100 points to the least successful stocks for that industry.

PRTA's Valuation (56) in the Biotechnology industry is in the same range as ZG (79) in the Information Technology Services industry. This means that PRTA’s stock grew similarly to ZG’s over the last 12 months.

ZG's Profit vs Risk Rating (86) in the Information Technology Services industry is in the same range as PRTA (100) in the Biotechnology industry. This means that ZG’s stock grew similarly to PRTA’s over the last 12 months.

ZG's SMR Rating (90) in the Information Technology Services industry is in the same range as PRTA (90) in the Biotechnology industry. This means that ZG’s stock grew similarly to PRTA’s over the last 12 months.

ZG's Price Growth Rating (48) in the Information Technology Services industry is somewhat better than the same rating for PRTA (96) in the Biotechnology industry. This means that ZG’s stock grew somewhat faster than PRTA’s over the last 12 months.

PRTA's P/E Growth Rating (94) in the Biotechnology industry is in the same range as ZG (100) in the Information Technology Services industry. This means that PRTA’s stock grew similarly to ZG’s over the last 12 months.

TECHNICAL ANALYSIS
Technical Analysis
PRTAZG
RSI
ODDS (%)
Bullish Trend 3 days ago
73%
N/A
Stochastic
ODDS (%)
Bullish Trend 3 days ago
77%
Bearish Trend 3 days ago
72%
Momentum
ODDS (%)
N/A
Bullish Trend 3 days ago
78%
MACD
ODDS (%)
Bullish Trend 3 days ago
76%
Bullish Trend 3 days ago
73%
TrendWeek
ODDS (%)
Bullish Trend 3 days ago
79%
Bullish Trend 3 days ago
75%
TrendMonth
ODDS (%)
Bearish Trend 3 days ago
88%
Bullish Trend 3 days ago
76%
Advances
ODDS (%)
Bullish Trend 3 days ago
75%
Bullish Trend 5 days ago
79%
Declines
ODDS (%)
Bearish Trend 13 days ago
87%
Bearish Trend 18 days ago
79%
BollingerBands
ODDS (%)
Bullish Trend 3 days ago
74%
Bullish Trend 3 days ago
71%
Aroon
ODDS (%)
Bearish Trend 3 days ago
87%
Bullish Trend 3 days ago
72%
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PRTA
Daily Signalchanged days ago
Gain/Loss if bought
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ZG
Daily Signalchanged days ago
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PRTA and

Correlation & Price change

A.I.dvisor indicates that over the last year, PRTA has been loosely correlated with RCKT. These tickers have moved in lockstep 54% of the time. This A.I.-generated data suggests there is some statistical probability that if PRTA jumps, then RCKT could also see price increases.

1D
1W
1M
1Q
6M
1Y
5Y
Ticker /
NAME
Correlation
To PRTA
1D Price
Change %
PRTA100%
+6.92%
RCKT - PRTA
54%
Loosely correlated
+10.65%
SVRA - PRTA
46%
Loosely correlated
+2.52%
DNLI - PRTA
44%
Loosely correlated
+3.38%
KRYS - PRTA
40%
Loosely correlated
+3.26%
RVMD - PRTA
39%
Loosely correlated
+2.26%
More

ZG and

Correlation & Price change

A.I.dvisor indicates that over the last year, ZG has been closely correlated with Z. These tickers have moved in lockstep 100% of the time. This A.I.-generated data suggests there is a high statistical probability that if ZG jumps, then Z could also see price increases.

1D
1W
1M
1Q
6M
1Y
5Y
Ticker /
NAME
Correlation
To ZG
1D Price
Change %
ZG100%
+0.75%
Z - ZG
100%
Closely correlated
+0.70%
CARG - ZG
52%
Loosely correlated
-0.09%
SNAP - ZG
43%
Loosely correlated
+0.85%
META - ZG
40%
Loosely correlated
+1.91%
SMWB - ZG
40%
Loosely correlated
-1.13%
More