1-Year Forecast *
▼ 306.06
5-Year Forecast *
▼ 72.49
Historical index on Taiwan Stock Exchange :
B
"Should I invest in Yankey Engineering Co., stock?"
"Should I trade "6691" stock today?"
According to our live Forecast System,
Yankey Engineering Co., Ltd. stock is
a bad
long-term (1-year) investment*.
"6691" stock predictions are updated every 5 minutes with latest exchange prices by smart technical market analysis.
Q&A about "6691" projections.
See Our Other Forecasts
At Walletinvestor.com we predict future values with technical analysis for wide selection of stocks like
Yankey Engineering Co., Ltd. (6691).
If you are looking for stocks with good return, Yankey Engineering Co., Ltd.
can be a bad, high-risk 1-year investment option.
Yankey Engineering Co., Ltd. quote is equal to
446.00 at 2026-02-18, but your current investment may be devalued in the future.
Based on our forecasts, a long-term decrease is expected,
the "6691" stock price prognosis for 2031-02-18
is 72.49. With a 5-year investment, the revenue is expected to be around
-83.75%.
Your current $100 investment may be down to $16.25 in 2031.
Yankey Engineering Co., Ltd. Forecast,
Short-Term 6691 Stock Price Prediction for Next Days and Weeks
Yankey Engineering Co., Ltd. Forecast,
Long-Term Price Predictions for Next Months and Year: 2026, 2027, 2028, 2029, 2030
6691 Target Price
Yankey Engineering Co., Ltd. price target in 14 days:
465.75* upside and
450.63* downside.
(Highest and lowest possible predicted price in a 14 day period)
Yankey Engineering Co., Ltd. forecast* for tomorrow, and next weeks based on the last 30 days
6691 forecast for the upcoming days
| Date | Price | Min Price | Max Price |
|---|
| 2025-09-27 |
453.69 |
444.61 |
462.76 |
| 2025-09-28 |
457.81 |
448.65 |
466.96 |
| 2025-09-29 |
453.28 |
444.21 |
462.34 |
| 2025-09-30 |
457.40 |
448.25 |
466.54 |
| 2025-10-01 |
461.55 |
452.32 |
470.78 |
| 2025-10-02 |
465.75 |
456.43 |
475.06 |
| 2025-10-03 |
462.03 |
452.79 |
471.27 |
| 2025-10-04 |
457.46 |
448.31 |
466.61 |
| 2025-10-05 |
461.61 |
452.38 |
470.85 |
| 2025-10-06 |
457.05 |
447.90 |
466.19 |
| 2025-10-07 |
457.98 |
448.82 |
467.14 |
| 2025-10-08 |
453.45 |
444.38 |
462.52 |
| 2025-10-09 |
450.63 |
441.62 |
459.64 |
14 Days Historical Data
| Date | Opening price | Closing price | Minimum price | Maximum price |
|---|
| 2025-09-08 |
496.00 |
487.50 |
486.50 |
498.00 |
| 2025-09-09 |
489.00 |
486.50 |
484.50 |
493.50 |
| 2025-09-10 |
490.00 |
482.50 |
482.50 |
498.00 |
| 2025-09-11 |
483.00 |
478.50 |
478.50 |
491.50 |
| 2025-09-12 |
480.00 |
471.00 |
467.00 |
482.00 |
| 2025-09-15 |
471.00 |
461.00 |
459.50 |
471.00 |
| 2025-09-16 |
461.50 |
464.00 |
460.50 |
468.50 |
| 2025-09-17 |
467.50 |
445.00 |
445.00 |
467.50 |
| 2025-09-18 |
450.00 |
446.50 |
446.50 |
453.50 |
| 2025-09-19 |
448.00 |
439.50 |
439.50 |
450.00 |
| 2025-09-22 |
440.50 |
444.00 |
435.50 |
447.50 |
| 2025-09-23 |
446.00 |
449.00 |
446.00 |
454.50 |
| 2025-09-24 |
453.50 |
451.00 |
449.50 |
466.50 |
| 2025-09-25 |
451.50 |
446.00 |
446.00 |
457.00 |
Stock Info
Company Name: Yankey Engineering Co., Ltd.
Exchange: Taiwan Stock Exchange
Industry: Engineering & Construction
Sector: Industrials
Symbol: 6691
Type: stock
Website: https://www.yankey.com.tw
Forward Annual Dividend Rate: 16.00
Forward Annual Dividend Yield: 3.59%
Last Split Factor: 6:5
Last Split Date: 2024-07-22
Pivot, Resistance and Support Levels
Resistance Level (R3): 464.33
Resistance Level (R2): 460.67
Resistance Level (R1): 453.33
Pivot Point: 449.67
Support Level (S1): 442.33
Support Level (S2): 438.67
Support Level (S3): 431.33
Stock Stats
Price (Previous Close): 446.000
Share Volume (Previous Close): 575,003
52 Week High: 465.748
52 Week Low: 306.056
Questions & Answers about Yankey Engineering Co., Ltd. Projection
What is the Yankey Engineering Co., Ltd. price today?
The 6691 stock price is 446.00 today.
Will Yankey Engineering Co., Ltd. price grow / rise / go up?
No. The 6691 price may drop from 446.00 to 306.06.
Will 6691 stock price crash?
According to our analysis, this can happen.
Will 6691 price hit "1000" in a year?
Will 6691 price hit "2000" in a year?
Will 6691 price hit "5000" in a year?
Yankey Engineering Co., Ltd. (6691) Price Prediction, Forecast for next months and years
Below you will find the price predictions for 2026, 2027.
| Date |
Opening price |
Closing price |
Minimum price |
Maximum price |
Change |
| Yankey Engineering Co., Ltd. Forecast for 2026 |
| January 2026 | 420.24 | 401.29 | 388.18 | 432.54 | 4.51 % ▼ |
| February 2026 | 400.78 | 381.54 | 375.77 | 412.72 | 4.80 % ▼ |
| March 2026 | 381.74 | 381.24 | 361.81 | 403.16 | 0.13 % ▼ |
| April 2026 | 375.76 | 375.50 | 353.43 | 393.82 | 0.07 % ▼ |
| May 2026 | 370.10 | 347.39 | 342.13 | 378.27 | 6.14 % ▼ |
| June 2026 | 347.56 | 343.98 | 329.42 | 367.07 | 1.03 % ▼ |
| July 2026 | 345.54 | 341.88 | 321.79 | 358.56 | 1.06 % ▼ |
| August 2026 | 336.97 | 316.29 | 311.50 | 344.41 | 6.14 % ▼ |
| September 2026 | 316.45 | 313.19 | 299.93 | 334.21 | 1.03 % ▼ |
| October 2026 | 314.61 | 311.28 | 292.98 | 326.46 | 1.06 % ▼ |
| November 2026 | 306.80 | 293.63 | 283.87 | 313.58 | 4.29 % ▼ |
| December 2026 | 289.41 | 285.15 | 273.08 | 304.29 | 1.47 % ▼ |
| Yankey Engineering Co., Ltd. Forecast for 2027 |
| January 2027 | 286.44 | 283.41 | 266.76 | 297.24 | 1.06 % ▼ |
| February 2027 | 279.34 | 265.05 | 260.58 | 285.51 | 5.11 % ▼ |
| March 2027 | 263.74 | 256.64 | 248.64 | 277.05 | 2.69 % ▼ |
| April 2027 | 256.12 | 260.35 | 242.88 | 270.63 | 1.65 % ▲ |
| May 2027 | 257.11 | 241.33 | 237.25 | 262.25 | 6.14 % ▼ |
| June 2027 | 240.13 | 236.29 | 226.38 | 252.25 | 1.60 % ▼ |
| July 2027 | 234.18 | 237.05 | 221.13 | 246.40 | 1.22 % ▲ |
| August 2027 | 234.09 | 219.72 | 216.01 | 238.77 | 6.14 % ▼ |
| September 2027 | 218.63 | 216.48 | 209.29 | 229.67 | 0.98 % ▼ |
> Page 2: detailed data / price table <
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* Our share forecasts and predictions are made by Machine Learning & Ai, and shouldn't been used for financial decisions. We can't guarantee any profit.