Perennial Investment Advisors, LLC

CIK 1801523 · Lihat di SEC EDGAR ↗

Nilai Portofolio
$1.5B
#1.860 dari 9.443 berdasarkan nilai 13F · top 19.7%
Posisi
585
Per tanggal
30 Juni 2026

Nilai portofolio QoQ: +19.9% 13F tidak mengungkapkan kas

Bobot 10 kepemilikan teratas
33,48%
Bobot 25 kepemilikan teratas
49,59%
Posisi di atas 1%
18
Jumlah posisi efektif
68,2

Berdasarkan kepemilikan ekuitas jangka panjang 13F saja (kas, obligasi, posisi jual tidak diungkapkan)

Perputaran Q2 2026: 4,88% Perkiraan pembelian $172.593.242 · penjualan $67.345.685

Kepemilikan median: 6,0 kuartal Dilacak Q4 2024–Q2 2026 · 80,9% masih dipegang

Posisi baru
97
Meningkat
295
Menurun
170
Tertutup
16

Eksposur put-notional: 0,0% put 13F melaporkan posisi opsi pada nilai notional yang mendasarinya — dapat mencakup lindung nilai, tidak selalu taruhan bearish

Di halaman ini

Rincian sektor

Technology
13,7%
Consumer Discretionary
3,2%
Communication Services
2,2%
Retail
2,0%
Industrials
1,8%
Financial Services
1,3%
Healthcare
1,2%
Energy
0,6%
Financials
0,5%
Consumer Staples
0,4%
Utilities
0,4%
Communications
0,3%
Real Estate
0,3%
Telecommunication
0,2%
Consumer products
0,1%
Materials
0,1%
Logistics & Transportation
0,1%
Packaging
0,0%
Lainnya/Tidak terpetakan
71,7%

Portofolio lengkap 585 posisi

Tipe Rentetan Tren 8 kuartal
NVDA NVIDIA Corporation - Common Stock $64.739.959 4,30% 323.551 $9.187.045 Naik ×1
SPYG $59.028.266 3,92% 496.052 $10.017.932 Turun ×1
QUS $56.243.438 3,74% 300.970 $1.702.567 Turun ×1
SPHQ $53.325.462 3,54% 591.843 $1.011.712 Turun ×3
IWY $51.077.639 3,39% 175.672 $9.196.902 Naik ×6
SPYV $49.431.970 3,28% 813.155 $1.797.691 Turun ×2
AAPL Apple Inc. - Common Stock $48.980.726 3,25% 169.271 $6.464.082 Naik ×2
RDVY First Trust Rising Dividend Achievers ETF $44.939.518 2,99% 554.406 $9.501.668 Naik ×5
TSLA Tesla, Inc. - Common Stock $39.471.627 2,62% 93.847 $3.672.434 Turun ×3
SPYM $36.640.892 2,43% 416.925 $21.459.154 Naik ×2
IYW $23.022.285 1,53% 91.197 $4.948.249 Turun ×4
DYNF $22.750.728 1,51% 334.511 $3.691.661 Naik ×1
SPY SPY $22.060.748 1,47% 29.542 $2.442.573 Turun ×1
BAI $20.972.430 1,39% 397.817 $7.825.495 Turun ×1
AMZN Amazon.com, Inc. - Common Stock $19.668.338 1,31% 82.523 $3.661.082 Naik ×6
VUG $15.662.153 1,04% 181.822 $4.732.950 Naik ×6
QQQ Invesco QQQ Trust, Series 1 $15.144.080 1,01% 20.565 $3.454.423 Naik ×1
IVV $15.002.376 1,00% 20.032 $-764.918 Turun ×1
MSFT Microsoft Corporation - Common Stock $13.893.387 0,92% 37.244 $1.306.461 Naik ×1
VTI $13.778.631 0,92% 37.236 $1.259.862 Turun ×1
VGT $13.621.219 0,90% 113.963 $3.834.854 Naik ×2
VTV $12.914.970 0,86% 59.265 $3.094.488 Naik ×6
QUAL $11.437.641 0,76% 52.117 $1.221.529 Turun ×2
GOOGL Alphabet Inc. - Class A Common Stock $11.353.505 0,75% 31.770 $3.396.799 Naik ×1
COWZ $11.277.486 0,75% 181.310 $-137.093 Turun ×1
IEMG $11.028.468 0,73% 133.132 $-577.933 Turun ×1
IALT iShares Systematic Alternatives Active ETF $10.147.266 0,67% 361.743 Naik ×1
BRKB $10.045.663 0,67% 20.075 $183.892 Turun ×1
CGDV $9.664.330 0,64% 196.110 $3.194.745 Naik ×5
NTSX $9.534.805 0,63% 161.472 $1.159.132 Naik ×1
GOOG Alphabet Inc. - Class C Capital Stock $9.447.469 0,63% 26.738 $1.939.230 Naik ×4
XLK XLK $8.975.776 0,60% 47.110 $2.758.696 Naik ×3
PZA $8.878.504 0,59% 377.487 $5.382.787 Naik ×3
CGGR $8.735.801 0,58% 185.080 $2.816.954 Naik ×6
MTUM $8.722.846 0,58% 25.423 $1.879.518 Turun ×2
CLIP $8.497.834 0,56% 84.691 $-501.985 Turun ×3
SFLR $8.047.683 0,53% 208.597 $894.428 Naik ×6
VEA $7.998.548 0,53% 112.261 $1.237.456 Naik ×6
AVGO Broadcom Inc. - Common Stock $7.686.641 0,51% 20.344 $1.556.572 Naik ×2
SPTI $7.558.260 0,50% 266.213 $6.720.541 Naik ×2
SDY $7.382.813 0,49% 48.514 $964.663 Naik ×2
OUNZ $7.269.987 0,48% 188.390 $-956.915 Naik ×6
CGGO $7.126.047 0,47% 168.346 $1.645.094 Naik ×6
META Meta Platforms, Inc. - Class A Common Stock $6.725.988 0,45% 11.935 $143.345 Naik ×6
AIQ Global X Artificial Intelligence & Technology ETF $6.359.243 0,42% 96.918 $1.777.613 Turun ×2
XMHQ $6.107.330 0,41% 54.060 $635.981 Naik ×2
SHLD $5.894.061 0,39% 98.691 $173.329 Naik ×3
AMD Advanced Micro Devices, Inc. - Common Stock $5.697.570 0,38% 9.808 $4.126.131 Naik ×1
JEPQ JPMorgan Nasdaq Equity Premium Income ETF $5.668.903 0,38% 92.236 $991.439 Naik ×6
CGUS $5.548.314 0,37% 124.737 $1.008.021 Naik ×6
IAGG $5.516.755 0,37% 109.023 $206.270 Naik ×4
PLTR Palantir Technologies Inc. - Class A Common Stock $5.493.826 0,36% 47.089 $-553.401 Naik ×4
JAVA $5.432.895 0,36% 68.416 $-520.128 Turun ×1
RWL $5.408.640 0,36% 42.335 $567.448 Naik ×1
XLI XLI $5.324.972 0,35% 28.750 $86.273 Turun ×3
MU Micron Technology, Inc. - Common Stock $4.996.311 0,33% 4.329 $3.107.338 Turun ×2
GOVT $4.837.371 0,32% 212.348 $637.212 Naik ×2
BLCR iShares Large Cap Core Active ETF $4.796.891 0,32% 95.211 Naik ×1
TSM Taiwan Semiconductor Manufacturing Company Ltd. $4.779.547 0,32% 10.009 $1.295.719 Turun ×1
HGER Harbor Commodity All-Weather Strategy ETF $4.770.514 0,32% 162.594 $-266.214 Naik ×3
VO $4.693.374 0,31% 58.255 $1.335.336 Naik ×6
SPTM $4.615.880 0,31% 50.840 $571.422 Turun ×6
SPSM $4.581.028 0,30% 79.441 $810.909 Naik ×1
BIL $4.526.844 0,30% 49.399 $-304.956 Turun ×3
THRO $4.509.106 0,30% 104.574 $-988.088 Turun ×1
SPGP $4.489.042 0,30% 36.709 $-1.851.959 Turun ×5
DGRO $4.438.187 0,29% 58.559 $1.875.819 Naik ×1
SPYI $4.387.168 0,29% 82.636 $528.019 Naik ×6
OBDC Blue Owl Capital Corporation Common Stock $4.377.698 0,29% 402.734 $-36.208 Naik ×1
VOO $4.370.774 0,29% 6.367 $894.402 Naik ×6
IJR $4.298.182 0,29% 28.982 $753.814 Naik ×1
FTHI First Trust BuyWrite Income ETF $4.240.641 0,28% 177.809 $445.595 Naik ×6
NBIS Nebius Group N.V. - Class A Ordinary Shares $4.240.000 0,28% 15.353 $2.578.978 Turun ×1
LLY Eli Lilly and Company Common Stock $3.920.378 0,26% 3.269 $2.170.248 Naik ×3
SPMD $3.767.915 0,25% 55.762 $490.237 Naik ×1
IWF $3.735.573 0,25% 30.085 $500.763 Naik ×3
COST Costco Wholesale Corporation - Common Stock $3.696.169 0,25% 3.950 $30.825 Naik ×1
SLYG $3.686.008 0,24% 30.936 $689.056 Turun ×1
CLM $3.663.047 0,24% 484.530 $199.477 Naik ×6
CGNG $3.645.058 0,24% 97.307 $717.777 Naik ×6
EFA $3.626.574 0,24% 34.909 $-55.317 Turun ×1
JGRO $3.618.850 0,24% 36.706 $564.381 Naik ×6
CRF $3.596.631 0,24% 500.924 $219.995 Naik ×6
BUFR $3.575.050 0,24% 97.866 $248.703 Turun ×1
OMFL $3.529.704 0,23% 51.501 $-243.961 Turun ×6
JPM JP Morgan Chase & Co. Common Stock $3.479.379 0,23% 10.630 $866.843 Naik ×1
IJH $3.471.566 0,23% 45.021 $471.817 Naik ×1
NFLX Netflix, Inc. - Common Stock $3.464.754 0,23% 48.526 $-1.429.779 Turun ×1
IEFA $3.438.545 0,23% 35.603 $1.304.745 Naik ×3
EMBX $3.310.460 0,22% 64.525 $-2.167.110 Turun ×1
CGCP $3.289.178 0,22% 147.563 $-168.357 Turun ×1
SLYV $3.255.838 0,22% 29.831 $381.325 Turun ×6
SMH SMH $3.227.876 0,21% 4.921 $1.544.613 Naik ×3
VIG $3.219.078 0,21% 13.604 $743.965 Naik ×3
CGMS $3.218.093 0,21% 117.750 $-402.236 Turun ×1
XLF XLF $3.085.643 0,21% 57.558 $896.881 Naik ×1
XLV XLV $3.053.697 0,20% 19.243 $473.198 Naik ×3
FTCS First Trust Capital Strength ETF $3.046.516 0,20% 32.439 $-69.495 Turun ×6
PANW Palo Alto Networks, Inc. - Common Stock $3.029.950 0,20% 8.885 $1.745.147 Naik ×1
IAU $3.014.439 0,20% 39.920 $-288.555 Naik ×1

Kepemilikan dengan keyakinan

Posisi meningkat selama 3+ kuartal berturut-turut.

Jumlah saham dilaporkan dalam pengajuan 13F (tidak disesuaikan split)

Sekuritas Nilai % dari portofolio Rentetan
IWY $51.077.639 3,39% naik ×6
RDVY $44.939.518 2,99% naik ×5
AMZN $19.668.338 1,31% naik ×6
VUG $15.662.153 1,04% naik ×6
VTV $12.914.970 0,86% naik ×6
CGDV $9.664.330 0,64% naik ×5
GOOG $9.447.469 0,63% naik ×4
XLK $8.975.776 0,60% naik ×3
PZA $8.878.504 0,59% naik ×3
CGGR $8.735.801 0,58% naik ×6
SFLR $8.047.683 0,53% naik ×6
VEA $7.998.548 0,53% naik ×6
OUNZ $7.269.987 0,48% naik ×6
CGGO $7.126.047 0,47% naik ×6
META $6.725.988 0,45% naik ×6

Taruhan baru terbesar

Posisi baru dibuka kuartal ini, terbesar diurutkan pertama.

Sekuritas Nilai Saham % dari portofolio
IALT $10.147.266 361.743 0,67%
BLCR $4.796.891 95.211 0,32%
APRW $2.496.902 67.230 0,17%
PBFR $2.041.605 66.632 0,14%
GLW $1.253.413 4.907 0,08%
ILCG $1.011.270 8.642 0,07%
Penerbit tidak dikenal (CUSIP: 84615Q103) $1.011.068 5.917 0,07%
STPZ $970.914 18.199 0,06%
Penerbit tidak dikenal (CUSIP: 46654Q484) $888.983 17.663 0,06%
AMD $813.274 1.400 0,05%
MU $808.003 700 0,05%
TXUE $807.592 23.395 0,05%
ARM $682.388 1.924 0,05%
VV $625.364 1.818 0,04%
AVUV $623.925 5.001 0,04%

Penggerak teratas (QoQ)

Sekuritas Aksi Saham Δ Nilai Δ
SPYM Beli lebih banyak +219K +$21.5M
SPYG Dipangkas -5K +$10.0M
RDVY Beli lebih banyak +35K +$9.5M
IWY Beli lebih banyak +7K +$9.2M
NVDA Beli lebih banyak +5K +$9.2M
BAI Dipangkas -1K +$7.8M
AAPL Beli lebih banyak +2K +$6.5M
TLT Dipangkas -69K -$6.0M
PZA Beli lebih banyak +225K +$5.4M
IYW Dipangkas -8K +$4.9M

1 posisi disembunyikan (pemeriksaan kelengkapan data)

Posisi yang keluar

Termasuk peristiwa perusahaan (merger, delisting) — tidak semua keluar adalah penjualan

Posisi tertutup mencerminkan perubahan pelaporan 13F; bagi manajer indeks, ini sering kali mekanis (penghapusan pencatatan, M&A, penyeimbangan ulang indeks), bukan keputusan aktif.

SekuritasKuartal Saham sebelumnya Nilai sebelumnya Harga sejak keluar
LSAF 31 Maret 2025 79.637 $3.226.930 Tidak lagi dilacak
LSAT 31 Maret 2025 52.642 $2.116.370 Tidak lagi dilacak
DYLD 31 Maret 2025 79.301 $1.781.036 Tidak lagi dilacak
CGDG 31 Maret 2025 28.635 $848.712 Tidak lagi dilacak
XLG 30 Juni 2025 18.381 $845.861 Tidak lagi dilacak
EPS 30 Juni 2025 14.066 $833.862 Tidak lagi dilacak
EVM 31 Des. 2025 78.950 $749.235 Tidak lagi dilacak
STPZ 31 Des. 2025 13.189 $714.549 Tidak lagi dilacak
SPTL 30 Juni 2025 23.918 $651.965 Tidak lagi dilacak
SQEW 31 Maret 2025 17.846 $600.525 Tidak lagi dilacak
FTEC 31 Des. 2025 2.611 $580.086 Tidak lagi dilacak
MAIN 31 Maret 2026 9.094 $549.200 11,0%
HON 30 Juni 2026 2.279 $515.184 -1,9%
JBND 30 Juni 2025 9.415 $503.932 -1,6%
CGCV 31 Maret 2026 15.840 $482.952 Tidak lagi dilacak
ICE 30 Juni 2026 2.668 $419.650 30,7%
EFG 30 Sep. 2025 3.573 $400.227 Tidak lagi dilacak
SRLN 31 Des. 2025 9.441 $392.578 Tidak lagi dilacak
SMCI 31 Des. 2025 8.150 $390.713 27,2%
TTD 31 Maret 2025 3.117 $366.342 -75,8%
PGX 30 Juni 2025 31.109 $349.043 Tidak lagi dilacak
STRK 30 Sep. 2025 2.859 $345.967 -22,2%
EIS 30 Juni 2026 2.853 $331.023 Tidak lagi dilacak
GLIN 30 Sep. 2025 6.679 $321.830 Tidak lagi dilacak
CME 30 Juni 2026 1.054 $311.223 23,7%
FIX 31 Maret 2026 324 $302.615 22,1%
OKLO 31 Maret 2026 4.166 $298.951 -13,4%
CLOI 31 Maret 2026 5.445 $287.494 Tidak lagi dilacak
NOW 31 Maret 2026 1.872 $286.777 24,0%
CCL 30 Juni 2026 11.037 $285.642 -10,1%
WDAY 31 Maret 2026 1.317 $282.651 50,4%
DJD 31 Maret 2025 5.535 $280.701 Tidak lagi dilacak
GSK 31 Maret 2026 5.718 $280.420 -6,3%
AAAU 31 Maret 2025 10.746 $278.699 Tidak lagi dilacak
BOTZ 30 Sep. 2025 8.491 $277.222
MLPX 31 Maret 2025 4.570 $276.746 Tidak lagi dilacak
TGT 30 Sep. 2025 2.796 $275.706 81,1%
ISCV 31 Maret 2025 4.339 $275.134 Tidak lagi dilacak
AJG 31 Maret 2026 1.050 $271.563 20,0%
ARM 31 Des. 2025 1.917 $271.235 129,4%
PPG 30 Juni 2025 2.451 $268.029 -0,1%
CCI 30 Juni 2025 2.567 $267.559 -26,0%
EIX 31 Maret 2025 3.347 $267.254 25,3%
LKQ 31 Maret 2025 7.158 $263.062 -38,9%
BSX 30 Sep. 2025 2.421 $260.040 -49,4%
SAP 30 Sep. 2025 852 $259.095 -19,4%
HOLX 31 Maret 2026 3.479 $259.075 Tidak lagi dilacak
SKYY 31 Maret 2026 1.987 $258.468
HYMB 31 Maret 2026 10.237 $255.280 Tidak lagi dilacak
PPG 31 Des. 2025 2.416 $253.946 10,9%
SDVY 30 Juni 2025 7.574 $253.863
SPGI 31 Maret 2026 479 $250.542 2,0%
BUD 30 Sep. 2025 3.641 $250.189 30,7%
OIH 30 Juni 2026 618 $249.503 Tidak lagi dilacak
AMBA 31 Maret 2025 3.403 $247.535 45,3%
FTSL 30 Sep. 2025 5.380 $246.891
XOP 30 Juni 2025 1.873 $246.736 Tidak lagi dilacak
FYT 31 Des. 2025 4.409 $246.422
FSS 31 Maret 2025 2.665 $246.219 65,5%
DFUV 30 Juni 2025 5.965 $245.818 Tidak lagi dilacak
VCSH 31 Des. 2025 3.046 $243.485
LEN 31 Maret 2026 2.364 $243.053 -0,5%
ACN 31 Maret 2026 898 $240.935 -7,9%
DFAX 31 Maret 2026 7.322 $239.649 Tidak lagi dilacak
AMP 31 Des. 2025 487 $239.119 14,1%
FWONK 31 Des. 2025 2.279 $238.041 6,1%
SE 31 Des. 2025 1.308 $233.752 -8,5%
UPST 31 Des. 2025 4.590 $233.152 -33,1%
SPBO 30 Sep. 2025 7.921 $231.492 Tidak lagi dilacak
SMIN 30 Sep. 2025 3.000 $231.476 Tidak lagi dilacak
MDYG 31 Des. 2025 2.514 $230.073 Tidak lagi dilacak
VGIT 31 Maret 2025 3.945 $228.810
FXI 30 Juni 2025 6.381 $228.695 Tidak lagi dilacak
NKE 30 Juni 2025 3.585 $227.572 -42,9%
XYZ 31 Maret 2025 2.676 $227.436 47,4%
VST 30 Sep. 2025 1.160 $224.836 -29,0%
FTSD 31 Maret 2025 2.490 $224.717 Tidak lagi dilacak
DXCM 30 Sep. 2025 2.574 $224.685 32,9%
SPYD 31 Maret 2025 5.190 $224.389 Tidak lagi dilacak
SHY 30 Juni 2025 2.711 $224.282
GBTC 31 Des. 2025 2.497 $224.155 Tidak lagi dilacak
HOG 31 Des. 2025 8.000 $223.200 37,8%
KIE 31 Maret 2026 3.700 $222.556 Tidak lagi dilacak
ACN 31 Maret 2025 631 $221.981 -41,5%
CMCSA 31 Maret 2026 7.375 $220.414 -7,8%
PGR 31 Maret 2025 919 $220.201 -22,2%
VONV 31 Des. 2025 2.457 $219.582
MDT 30 Juni 2025 2.441 $219.395 5,7%
CALF 31 Des. 2025 4.994 $218.649 Tidak lagi dilacak
FXU 30 Sep. 2025 5.111 $216.602 Tidak lagi dilacak
MEAR 31 Des. 2025 4.283 $216.312 Tidak lagi dilacak
IYF 31 Maret 2026 1.674 $215.829 Tidak lagi dilacak
EPD 30 Juni 2025 6.276 $214.253 24,1%
GM 31 Maret 2025 4.008 $213.542 86,5%
NDAQ 30 Juni 2026 2.500 $212.240 24,5%
KGRN 30 Juni 2026 7.399 $211.722 Tidak lagi dilacak
BNDX 31 Maret 2025 4.293 $210.569
PCG 30 Juni 2025 12.251 $210.479 28,3%
VFH 31 Maret 2026 1.576 $210.403 Tidak lagi dilacak
INCO 31 Maret 2025 3.262 $210.171 Tidak lagi dilacak
SUSA 31 Maret 2025 1.727 $210.023 Tidak lagi dilacak
AEP 31 Maret 2026 1.821 $209.911 -5,8%
VFH 31 Maret 2025 1.777 $209.837 Tidak lagi dilacak
COIN 31 Maret 2026 928 $209.742 7,3%
SMR 30 Sep. 2025 5.300 $209.668 -74,2%
XYZ 31 Des. 2025 2.898 $209.439 23,0%
LCTU 31 Maret 2025 3.258 $208.677 Tidak lagi dilacak
IGRO 31 Maret 2026 2.521 $208.662 Tidak lagi dilacak
REGN 30 Juni 2025 329 $208.661 59,6%
SYM 30 Juni 2026 3.895 $207.215 -6,6%
DAL 31 Maret 2025 3.420 $206.908 88,3%
WMB 31 Des. 2025 3.264 $206.801 18,9%
EFAV 30 Juni 2025 2.653 $206.721 Tidak lagi dilacak
GTLB 31 Maret 2026 5.508 $206.719 88,9%
DECK 30 Juni 2026 2.063 $206.485 -9,5%
UPS 30 Juni 2025 1.872 $205.848 2,4%
IEI 30 Juni 2026 1.734 $205.653
EMNT 30 Juni 2025 2.078 $205.128 Tidak lagi dilacak
GXO 31 Maret 2026 3.895 $205.033 -11,5%
GD 30 Juni 2025 751 $204.810 33,0%
XHB 30 Juni 2026 2.073 $204.607 Tidak lagi dilacak
FDX 30 Juni 2025 836 $203.813 44,9%
CYBR 30 Sep. 2025 500 $203.440 Tidak lagi dilacak
GD 31 Maret 2026 604 $203.236 13,0%
FEZ 31 Maret 2026 3.150 $202.830 Tidak lagi dilacak
ARTY 31 Maret 2026 4.207 $202.693 Tidak lagi dilacak
HOG 30 Juni 2025 8.000 $202.000 19,7%
VV 31 Maret 2026 642 $201.964 Tidak lagi dilacak
SCHO 30 Sep. 2025 8.236 $200.793 Tidak lagi dilacak
IDCC 31 Maret 2026 630 $200.580 13,6%
FAST 30 Juni 2026 4.318 $200.369 6,1%
BBUS 31 Des. 2025 1.658 $200.004 Tidak lagi dilacak
PFFD 30 Juni 2025 10.260 $195.289 Tidak lagi dilacak
PDI 30 Juni 2026 10.236 $175.136 -10,1%
WBD 30 Sep. 2025 14.017 $160.634 45,5%
CHI 31 Maret 2025 10.800 $128.952 35,7%
FSSL 30 Juni 2026 10.140 $126.855 3,9%
NAC 30 Sep. 2025 11.012 $123.004 1,9%
FSCO 31 Maret 2026 18.069 $113.834 1,5%
MVF 31 Maret 2026 15.106 $104.687 Tidak lagi dilacak
EXG 30 Sep. 2025 11.384 $99.610 8,7%
AMCR 31 Maret 2026 10.088 $84.135 21,1%
CHPTXXXX 30 Sep. 2025 96.650 $67.974 Tidak lagi dilacak
CELU 31 Maret 2026 13.629 $15.128 -38,4%
OTLY 31 Maret 2025 12.000 $7.954 43,9%
WKHS 31 Maret 2025 10.800 $7.538 89,1%
ZOOZ 30 Juni 2026 14.500 $4.365 4,9%
APLT 31 Maret 2026 11.600 $1.160 Tidak lagi dilacak