APPN Deep Analytical Report

Appian Corporation | Category: Equity Small Cap | Last Updated: 2026-02-22 | Data Range: 2017-05-01 → 2026-02-01 (106 months)
Quick Overview
Timeframe C-C DoR σ
(Historical)
H-L DoR σ
(Historical)
O-C DoR σ
(Historical)
5Y ATRP
(Avg)
Binomial IV
(Period)
Yahoo IV
(Period)
1σ Lower
(68.27%)
1σ Upper 2σ Lower
(95.45%)
2σ Upper
Daily 4.16% 3.37% 3.69% 5.38% 3.60% 3.63% 24.25 26.06 23.39 27.02
Weekly 9.33% 8.37% 9.18% 12.65% 7.93% 8.00% 23.22 27.22 21.45 29.46
Monthly 19.97% 25.86% 16.21% 24.98% 16.52% 16.65% 21.31 29.65 18.07 34.98
Quarterly 45.58% 50.76% 26.64% 38.27% 28.61% 28.83% 18.89 33.47 14.19 44.55
Annual 57.21% 57.67% 14.19 44.55 8.01 78.94
Option Time Horizon 22.01% 22.18% 20.17 31.33 16.19 39.04
Calculation Notes: Computed at 2026-02-22T14:25 UTC  |  Reference Contract: Call option expiring 2026-04-17 (54 days)  |  Spot Price (S): $25.14  |  Strike (K): $27.50 (first OTM call ≥ spot)  |  Observed Mid-Price: $1.3500 (Bid $1.2000 / Ask $1.5000)  |  Risk-Free Rate (r): 3.72% (1-Month CMT, US Treasury)  |  Dividend Yield (q): 0.00%  |  Binomial IV (Annual): 57.21% (CRR binomial tree, American, n=20 steps)  |  BS IV: 56.93% (European Black-Scholes)  |  Yahoo IV (Annual): 57.67% → period-scaled as σperiod = σannual·√h  |  Price bands: Upper = S·e+σ√h, Lower = S·e−σ√h
Close-to-Close Returns
Gram-Charlier Analysis: Data reveals Right Skewed (Positive Asymmetry) with a Skewness factor of 0.61. Further, an Excess Kurtosis of 8.93 proves the distribution possesses Extreme Fat Tails (Frequent Outliers, Leptokurtic).
Bin Distribution Over Raw Range
Bin / RangeFrequencyProbCum. Prob
Less than -12.38%90.41%0.41%
-12.38% to -9.26%241.09%1.50%
-9.26% to -6.14%853.87%5.37%
-6.14% to -3.01%27012.30%17.67%
-3.01% to 0.11%70832.24%49.91%
0.11% to 3.23%73733.56%83.47%
3.23% to 6.35%26011.84%95.31%
6.35% to 9.48%693.14%98.45%
9.48% to 12.60%180.82%99.27%
Greater than 12.60%160.73%100.00%
Standard Deviation Interval Analysis
SDLower BndUpper Bnd Actual %Normal %
±1σ -4.05%4.27% 76.68%68.27%
±2σ -8.22%8.44% 95.45%95.45%
±3σ -12.38%12.60% 98.86%99.73%
High-to-Low Returns
Gram-Charlier Analysis: Data reveals Highly Right Skewed (Extreme Positive Tail Risk) with a Skewness factor of 2.89. Further, an Excess Kurtosis of 15.37 proves the distribution possesses Extreme Fat Tails (Frequent Outliers, Leptokurtic).
Bin Distribution Over Raw Range
Bin / RangeFrequencyProbCum. Prob
Less than -4.58%00.00%0.00%
-4.58% to -2.05%00.00%0.00%
-2.05% to 0.47%00.00%0.00%
0.47% to 2.99%39217.84%17.84%
2.99% to 5.52%96643.97%61.81%
5.52% to 8.04%51323.35%85.16%
8.04% to 10.57%1938.78%93.95%
10.57% to 13.09%683.10%97.04%
13.09% to 15.62%271.23%98.27%
Greater than 15.62%381.73%100.00%
Standard Deviation Interval Analysis
SDLower BndUpper Bnd Actual %Normal %
±1σ 2.15%8.88% 84.84%68.27%
±2σ -1.21%12.25% 96.04%95.45%
±3σ -4.58%15.62% 98.27%99.73%
Open-to-Close Returns
Gram-Charlier Analysis: Data reveals Fairly Symmetrical with a Skewness factor of 0.39. Further, an Excess Kurtosis of 7.63 proves the distribution possesses Extreme Fat Tails (Frequent Outliers, Leptokurtic).
Bin Distribution Over Raw Range
Bin / RangeFrequencyProbCum. Prob
Less than -10.98%130.59%0.59%
-10.98% to -8.21%190.86%1.46%
-8.21% to -5.45%683.10%4.55%
-5.45% to -2.68%32014.57%19.12%
-2.68% to 0.09%70632.13%51.25%
0.09% to 2.85%68531.18%82.43%
2.85% to 5.62%25111.42%93.86%
5.62% to 8.38%1004.55%98.41%
8.38% to 11.15%241.09%99.50%
Greater than 11.15%110.50%100.00%
Standard Deviation Interval Analysis
SDLower BndUpper Bnd Actual %Normal %
±1σ -3.60%3.78% 75.24%68.27%
±2σ -7.29%7.46% 95.45%95.45%
±3σ -10.98%11.15% 98.91%99.73%
Close-to-Close Returns
Gram-Charlier Analysis: Data reveals Right Skewed (Positive Asymmetry) with a Skewness factor of 0.71. Further, an Excess Kurtosis of 2.99 proves the distribution possesses Fat Tails (Higher Outlier Risk).
Bin Distribution Over Raw Range
Bin / RangeFrequencyProbCum. Prob
Less than -27.48%00.00%0.00%
-27.48% to -20.48%81.75%1.75%
-20.48% to -13.49%163.51%5.26%
-13.49% to -6.49%6313.82%19.08%
-6.49% to 0.51%15032.89%51.97%
0.51% to 7.50%13329.17%81.14%
7.50% to 14.50%6213.60%94.74%
14.50% to 21.50%102.19%96.93%
21.50% to 28.49%91.97%98.90%
Greater than 28.49%51.10%100.00%
Standard Deviation Interval Analysis
SDLower BndUpper Bnd Actual %Normal %
±1σ -8.82%9.84% 77.41%68.27%
±2σ -18.15%19.16% 94.74%95.45%
±3σ -27.48%28.49% 98.90%99.73%
High-to-Low Returns
Gram-Charlier Analysis: Data reveals Highly Right Skewed (Extreme Positive Tail Risk) with a Skewness factor of 2.22. Further, an Excess Kurtosis of 8.02 proves the distribution possesses Extreme Fat Tails (Frequent Outliers, Leptokurtic).
Bin Distribution Over Raw Range
Bin / RangeFrequencyProbCum. Prob
Less than -10.79%00.00%0.00%
-10.79% to -4.51%00.00%0.00%
-4.51% to 1.77%00.00%0.00%
1.77% to 8.05%8719.04%19.04%
8.05% to 14.33%19542.67%61.71%
14.33% to 20.61%10522.98%84.68%
20.61% to 26.89%378.10%92.78%
26.89% to 33.18%153.28%96.06%
33.18% to 39.46%91.97%98.03%
Greater than 39.46%91.97%100.00%
Standard Deviation Interval Analysis
SDLower BndUpper Bnd Actual %Normal %
±1σ 5.96%22.71% 81.40%68.27%
±2σ -2.41%31.08% 94.97%95.45%
±3σ -10.79%39.46% 98.03%99.73%
Open-to-Close Returns
Gram-Charlier Analysis: Data reveals Right Skewed (Positive Asymmetry) with a Skewness factor of 0.52. Further, an Excess Kurtosis of 2.46 proves the distribution possesses Fat Tails (Higher Outlier Risk).
Bin Distribution Over Raw Range
Bin / RangeFrequencyProbCum. Prob
Less than -27.08%30.66%0.66%
-27.08% to -20.19%61.31%1.97%
-20.19% to -13.31%122.63%4.60%
-13.31% to -6.42%6814.88%19.47%
-6.42% to 0.46%14732.17%51.64%
0.46% to 7.34%14030.63%82.28%
7.34% to 14.23%4810.50%92.78%
14.23% to 21.11%235.03%97.81%
21.11% to 28.00%51.09%98.91%
Greater than 28.00%51.09%100.00%
Standard Deviation Interval Analysis
SDLower BndUpper Bnd Actual %Normal %
±1σ -8.72%9.64% 75.49%68.27%
±2σ -17.90%18.82% 94.31%95.45%
±3σ -27.08%28.00% 98.25%99.73%
Close-to-Close Returns
Gram-Charlier Analysis: Data reveals Highly Right Skewed (Extreme Positive Tail Risk) with a Skewness factor of 2.42. Further, an Excess Kurtosis of 11.47 proves the distribution possesses Extreme Fat Tails (Frequent Outliers, Leptokurtic).
Bin Distribution Over Raw Range
Bin / RangeFrequencyProbCum. Prob
Less than -57.96%00.00%0.00%
-57.96% to -42.99%00.00%0.00%
-42.99% to -28.01%00.00%0.00%
-28.01% to -13.03%2019.05%19.05%
-13.03% to 1.95%4038.10%57.14%
1.95% to 16.92%2927.62%84.76%
16.92% to 31.90%98.57%93.33%
31.90% to 46.88%43.81%97.14%
46.88% to 61.86%21.90%99.05%
Greater than 61.86%10.95%100.00%
Standard Deviation Interval Analysis
SDLower BndUpper Bnd Actual %Normal %
±1σ -18.02%21.92% 80.00%68.27%
±2σ -37.99%41.89% 96.19%95.45%
±3σ -57.96%61.86% 99.05%99.73%
High-to-Low Returns
Gram-Charlier Analysis: Data reveals Highly Right Skewed (Extreme Positive Tail Risk) with a Skewness factor of 5.48. Further, an Excess Kurtosis of 41.55 proves the distribution possesses Extreme Fat Tails (Frequent Outliers, Leptokurtic).
Bin Distribution Over Raw Range
Bin / RangeFrequencyProbCum. Prob
Less than -44.27%00.00%0.00%
-44.27% to -24.87%00.00%0.00%
-24.87% to -5.48%00.00%0.00%
-5.48% to 13.92%32.83%2.83%
13.92% to 33.32%7368.87%71.70%
33.32% to 52.72%1816.98%88.68%
52.72% to 72.12%76.60%95.28%
72.12% to 91.51%32.83%98.11%
91.51% to 110.91%10.94%99.06%
Greater than 110.91%10.94%100.00%
Standard Deviation Interval Analysis
SDLower BndUpper Bnd Actual %Normal %
±1σ 7.46%59.18% 91.51%68.27%
±2σ -18.41%85.05% 98.11%95.45%
±3σ -44.27%110.91% 99.06%99.73%
Open-to-Close Returns
Gram-Charlier Analysis: Data reveals Fairly Symmetrical with a Skewness factor of -0.24. Further, an Excess Kurtosis of 0.45 proves the distribution possesses Normal Tails (Mesokurtic).
Bin Distribution Over Raw Range
Bin / RangeFrequencyProbCum. Prob
Less than -47.62%10.94%0.94%
-47.62% to -35.46%00.00%0.94%
-35.46% to -23.30%65.66%6.60%
-23.30% to -11.14%1615.09%21.70%
-11.14% to 1.02%3230.19%51.89%
1.02% to 13.18%2523.58%75.47%
13.18% to 25.34%1716.04%91.51%
25.34% to 37.50%98.49%100.00%
37.50% to 49.66%00.00%100.00%
Greater than 49.66%00.00%100.00%
Standard Deviation Interval Analysis
SDLower BndUpper Bnd Actual %Normal %
±1σ -15.19%17.24% 73.58%68.27%
±2σ -31.41%33.45% 95.28%95.45%
±3σ -47.62%49.66% 99.06%99.73%
Close-to-Close Returns
Gram-Charlier Analysis: Data reveals Highly Right Skewed (Extreme Positive Tail Risk) with a Skewness factor of 4.41. Further, an Excess Kurtosis of 23.42 proves the distribution possesses Extreme Fat Tails (Frequent Outliers, Leptokurtic).
Bin Distribution Over Raw Range
Bin / RangeFrequencyProbCum. Prob
Less than -130.69%00.00%0.00%
-130.69% to -96.50%00.00%0.00%
-96.50% to -62.32%00.00%0.00%
-62.32% to -28.14%25.71%5.71%
-28.14% to 6.05%1954.29%60.00%
6.05% to 40.23%1337.14%97.14%
40.23% to 74.42%00.00%97.14%
74.42% to 108.60%00.00%97.14%
108.60% to 142.79%00.00%97.14%
Greater than 142.79%12.86%100.00%
Standard Deviation Interval Analysis
SDLower BndUpper Bnd Actual %Normal %
±1σ -39.53%51.63% 91.43%68.27%
±2σ -85.11%97.21% 97.14%95.45%
±3σ -130.69%142.79% 97.14%99.73%
High-to-Low Returns
Gram-Charlier Analysis: Data reveals Highly Right Skewed (Extreme Positive Tail Risk) with a Skewness factor of 3.59. Further, an Excess Kurtosis of 16.43 proves the distribution possesses Extreme Fat Tails (Frequent Outliers, Leptokurtic).
Bin Distribution Over Raw Range
Bin / RangeFrequencyProbCum. Prob
Less than -88.02%00.00%0.00%
-88.02% to -49.95%00.00%0.00%
-49.95% to -11.88%00.00%0.00%
-11.88% to 26.19%12.78%2.78%
26.19% to 64.26%2158.33%61.11%
64.26% to 102.33%925.00%86.11%
102.33% to 140.40%411.11%97.22%
140.40% to 178.46%00.00%97.22%
178.46% to 216.53%00.00%97.22%
Greater than 216.53%12.78%100.00%
Standard Deviation Interval Analysis
SDLower BndUpper Bnd Actual %Normal %
±1σ 13.50%115.02% 88.89%68.27%
±2σ -37.26%165.78% 97.22%95.45%
±3σ -88.02%216.53% 97.22%99.73%
Open-to-Close Returns
Gram-Charlier Analysis: Data reveals Right Skewed (Positive Asymmetry) with a Skewness factor of 0.73. Further, an Excess Kurtosis of 3.41 proves the distribution possesses Extreme Fat Tails (Frequent Outliers, Leptokurtic).
Bin Distribution Over Raw Range
Bin / RangeFrequencyProbCum. Prob
Less than -77.80%00.00%0.00%
-77.80% to -57.82%12.78%2.78%
-57.82% to -37.85%00.00%2.78%
-37.85% to -17.87%513.89%16.67%
-17.87% to 2.11%1438.89%55.56%
2.11% to 22.09%1336.11%91.67%
22.09% to 42.06%12.78%94.44%
42.06% to 62.04%00.00%94.44%
62.04% to 82.02%25.56%100.00%
Greater than 82.02%00.00%100.00%
Standard Deviation Interval Analysis
SDLower BndUpper Bnd Actual %Normal %
±1σ -24.53%28.75% 83.33%68.27%
±2σ -51.16%55.38% 91.67%95.45%
±3σ -77.80%82.02% 100.00%99.73%